1. Poul
Erik Hansen and Arne Berg, NMR Investigations on Pyrene. Acta Chem. Scand.,
25 (1971) 3377-3387.
2. A.
Berg, P. E. Hansen and H. J. Jakobsen, Sixteen 13C - 19F
Spin-spin Coupling Constants in the 13C NMR Spectrum of
1-Flouropyrene.
Acta
Chem. Scand., 26 (1972) 2159-2161.
3. Poul
Erik Hansen, Housemaid. A ten spin computer program including symmetry.
Private
Communication in TAMU Letters, August 1972.
4. Poul
Erik Hansen, 13C - 19F and 1H NMR
Investigations of some Polycyclic Aromatic Hydrocarbons. Synthesis of 13C-Labelled
Compounds.
Licentiatafhandling,
(Ph.D.),
5. P.
E. Hansen, O. K. Poulsen and A. Berg, 13C - 13C Coupling
Constants and Substituent Effects on 13C Chemical Shifts in 13C
Labelled Pyrene and Pyrene Derivatives.
Org.
Magn. Reson., 7, (1975) 23-26.
6. J.
Feeney, P. E. Hansen and G. C. K. Roberts, The Use of 13C - 1H
Spin-coupling Constants in the Determination of Sidechain Conformations of
Aminoacids.
Chem.
Comm., (1974) 465-466.
7. P.
E. Hansen, J. Feeney and G. C. K. Roberts, Long-Range 13C - 1H
Spin-Coupling Constants in Aminoacids. Conformational Applications.
J.
Magn. Reson., 17 (1975) 249-261.
8. P. E.
Hansen, O. K. Poulsen and A. Berg, Substituent Effects on 13C
Coupling Constants and Chemical Shifts in 13C-Labelled Polycyclic
Aromatic Hydroxy Compounds.
Org.
Magn. Reson., 7 (1975) 475-477.
9. P.
E. Hansen, O. K. Poulsen and A. Berg, Determination of Relative Signs of 13C
- 13C Coupling Constants in Doubly Labelled Compound.
Org.
Magn. Reson., 7 (1975) 405-406.
10. P. E.
Hansen, O. K. Poulsen and A. Berg, 13C-13C Coupling
Constants in Derivatives of tr-Stilbene and Tetraphenylethylene.
Determination of Relative Signs. II.
Org.
Magn. Reson., 7 (1976) 632-637.
11. P. E.
Hansen and A. Berg, 13C - 13C Coupling Constants in
Dimethyl Phthalate and Phthalic Anhydride. Determinations of signs. III.
Org.
Magn. Reson., 8 (1976) 591-597.
12. P. E.
Hansen and A. Berg, 13C - 13C Coupling Constants in
Phenyl-substituted Ethylene, Naphtalene, Phenanthrene and Cydopentadienone.
Dependence on Dihedral angles. Determinations of Signs by the Symmetrical
Double Labelling Method. IV.
Org.
Magn. Reson.,, 8 (1976) 43-49.
13. P. E.
Hansen, O. K. Poulsen and A. Berg, 13C - 13C Coupling
Constants in Aromatic Carbonyl Compounds. Effects of ortho and peri
Interactions involving the Carbonyl Group.
Org.
Magn. Reson., 9 (1976) 649-658.
14. P. E.
Hansen, A. Berg and H. Lund, Cathodic t-butylation of Pyrene.
Acta
Chem. Scand., B30 (1976) 267-270.
15. P. E.
Hansen, A. Berg, H. J. Jacobsen, A. P. Manzara and J. Michl, 13C - 19F
Spin-spin Coupling Constants in some Monofluoro-substituted Polycyclic Aromatic
Hydrocarbons.
Org.
Magn. Reson., 10 (1977) 179-187.
16. P. E.
Hansen, J. C. Batchelor and J. Feeney, 13C Shielding Effects at ã -
Carbons in the Side - Chain Rotamers of - Aminoacids.
JCS
Perkin II, (1977) 50-54.
17. P. E.
Hansen, O. Blåbjerg and A. Berg, Dissolving Metal and Electrochemical Reduction
of Plycyclic Aromatic Hydrocarbons. Pyrene and 2,7-Di-t-butylpyrene.
Acta
Chem. Scand., B32 (1978) 620-627.
18. P. E.
Hansen, 13C - 13C
Org.
Magn. Reson., 9 (1978) 215-233.
19. P. E.
Hansen, H. Thiessen and R. Brodersen, Bilirubin Acidity. Titremetric and 13C
NMR Studies.
Acta
Chem. Scand., B33 (1979) 281-293.
20. P. E.
Hansen and A. Berg, 13C - 13C Coupling Constants in Anthracene,
Dihydroanthracene and Phthalic Acid Derivatives. Determination of Signs by the
Symmetrical Double Labelling (SDL) Method.
Org.
Magn. Reson., 12 (1979) 50-54.
21. J. L.
Marshall, L. G. Faehl, R. Kattner and P. E. Hansen, Substituent Conformational
Effects in Vicinal Carbon-13-carbon-13 Spin Coupling Sonstants.
Org.
Magn. Reson., 12 (1979) 169-173.
22. P. E.
Hansen, 13C NMR of Polycyclic Aromatic Compounds.
Org.
Magn. Reson., 12 (1979) 109-142.
23. P. E.
Hansen and J. J. Led, CH, CD, CC and HH Coupling Constants in Isotopically
Enriched Cyclobutene.
Org.
Magn. Reson., 15 (1981) 288-293.
24. P. E.
Hansen, Spin-spin Carbon-carbon Coupling Constants.
Ann.
Reports on NMR Spectroscopy, 11A
(1981) 65-98.
25. V.
Wray and P. E. Hansen, Spin-spin Carbon-carbon Coupling Constants Data.
Ann.
Reports on NMR Spectroscopy, 11A
(1981) 99-181.
26. V.
Wray and P. E. Hansen, One-bond Carbon-carbon Spin-spin Coupling Constants: A
Data Summery.
Org.
Magn. Reson., 15 (1981) 102-103.
27. P. E.
Hansen and A. Berg, Infra Red Spectra of Pyrene Derivatives. Relation to
Substitution Pattern.
Acta
Chem. Scand., B35 (1981) 131-137.
28. P. E.
Hansen, Carbon-hydrogen Coupling Constants, a review.
Progress
in Nuclear Magnetic Resonance Spectroscopy, 14
(1981) 175-296.
29. P. E.
Hansen and J.-P. Albrand, 13C - 13C Coupling Constants
from 13C labelled Aromatic Compounds obtained by substitution.
Org.
Magn. Reson., 17 (1981) 66-67.
30. P. E.
Hansen, F. Duus and P. Schmitt, Deuterium Isotope Effects on 13C
Nuclear Shielding as a Measure of Tautomeric Equilibria.
Org.
Magn. Reson., 18 (1982) 58-61.
31. L. T.
Scott, M. A. Kirms, A. Berg and P. E. Hansen, Automerization of Pyrene. A Test
for the Mechanism of Naphthalene Automerization.
Tetrahedron
Lett., (1982) 1859-1862.
32. P. E.
Hansen, Isotope Effects on Nuclear Shielding, A Review.
Ann.
Reports on NMR Spectroscopy, 15 (1983)
106-231.
33. J. H.
Baldo, P. E. Hansen, J. W. Shriver and B. Sykes, 2-Fluoro ATP, a New
Fluorinated ATP Analog. 19F NMR Studies of the 2-F-ADP. Myosin
Subfragment - 1 Complex.
34. P. E.
Hansen and A. Berg, Carbon-carbon Coupling Constants and 13Chemical
Shifts of Aromatic and Olefinic Carbonyl Compounds. Comformational Orientation
of the Carbonyl Group.
Spectrosc.
Int. J., 2 (1983) 1-21.
35. F. Duus
and P. E. Hansen, Determination of Tautomeric Phenotype of â - Thioxo Esters
and Characterization of the Tautomeric Enethiolic Constituents by Means of 13C
NMR Spectroscopy.
Org.
Magn. Reson., 22 (1984) 16-23.
36. N. J.
Koole, M. J. A. de Bie and P. E. Hansen, Carbon Proton Coupling Constants in
Allenes, Ethenes and Butatrienes. Application to Conformational Analysis of
Allenyl and Vinyl Alkyl Ethers and Thioethers.
Org.
Magn. Reson., 22 (1984) 146-163.
37. A.
Lycka and P. E. Hansen, Deuterium Isotope Effects on 13C and 15N
Nuclear Shielding of o-Hydroxyazo Dyes.
Org.
Magn. Reson., 22 (1984) 569-571.
38. P. E.
Hansen and H. J. Jakobsen, 15N NMR Investigation of Bilirubin IX.
Org.
Magn. Reson., 22 (1984) 668-670.
39. Poul
Erik Hansen, NMR of Polycyclic Aromatics,
Magn.
Reson. Review, 10 (1985) 1‑44.
40. A.
Lycka and P. E. Hansen, Deuterium Isotope Effects on 14N and 15N
Nuclear Shielding in Simple Nitrogen Containing Compounds,
Magn.
Reson. Chem., 23 (1985) 973‑976.
41. P. E.
Hansen, H. D. Dettman and B. D. Sykes, Solvent Induced Deuterium Isotope
Effects on 19F Chemical Shifts of some substituted Fluorobenzenes.
Formation of Inclusion Complexes.
J.
Magn. Reson., 62 (1985) 487‑496.
42. P. E.
Hansen, F. M. Nicolaisen and K. Schaumburg, Deuteriumisotope Effects on
Nuclear Shielding. Directional Effects and non‑additivity in Acyl‑derivatives.
J. Am. Chem. Soc., 108 (1986) 625‑629.
43. P. E.
Hansen, Deuterium Isotope Effects on 13C Nuclear Shielding of Intra‑molecular
Hydrogenbonded Systems, Magn. Reson. Chem., 24 (1986) 903‑910.
44. P. E.
Hansen and A. Lycka, Carbon‑carbon Coupling Constants of 1‑Phenylazo‑2‑naphthol
and 2‑Phenylazo‑1‑naphthol. Use of SEMINA Technique.
Magn. Reson. Chem., 24 (1986) 772‑776.
45. A.
Berg, J. Lam and P. E. Hansen, sec. Alkylpyrenes and ‑ hydropyrenes.
Formation by Friedel Crafts, Cathodic Alkylation, and Catalytic Hydrogenation
Procedures. Structure Determination and Spectroscopic Properties. Acta
Chem.Scand., B40 (1986) 665‑677.
46. P. E.
Hansen, A. Berg and K. Schaumburg, Carbon‑carbon,
nJ(C = O,C) and Carbon‑fluorine Coupling
Constants, nJ(C,F), of o ‑ substituted Benzoic Acids
and Acid Fluorides. INDO SOS Calculations and Evaluation of Rotational
Effects.
Magn.
Reson. Chem., 25 (1987) 508‑513.
47. P. E.
Hansen, Isotope Effects on Nuclear Shielding as a Means of Studying Solute ‑
solvent Interactions. In "Interactions of Water in Ionic and Nonionic
Hydrates", ed. H. Kleeberg, Springer,
48. P. E.
Hansen, Does an OH or an OD group form the strongest hydrogen bond to Oxygen,
In "Interaction of Water in Ionic and Nonionic Hydrates", ed. H.
Kleeberg,
Springer,
49. E.
Tüchsen and P. E. Hansen, Resonance Assignment of the Carbonyl 13C
NMR Spectrum of Basic Pancreatic Trypsin Inhibitor by Selective Hydrogen
Isotope Labelling and Isotope Effects on Nuclear Shielding.
Biochemistry, 27 (1988) 8568‑8576.
50. P. E.
Hansen, Deuterium Isotope Effects on Nuclear Shielding.
Progress in NMR Spectrosc., 20 (1988) 207-257.
51. P. E.
Hansen, Isotopic Pertubation of Equilibrium in 2,6‑Dihydroxy Benzoyl
Compounds.
Acta Chem. Scand., B42 (1988) 423‑432.
52. P. E.
Hansen and A. Lycka, A Reinvestigation of One‑bond Deuterium Isotope
Effects on Nitrogen and on Proton Nuclear
Shielding for the Ammonium Ion.
Acta Chem. Scand., 43 (1989) 222-232.
53. A.
Lycka, J. Jirman and P. E. Hansen, Two‑dimensional 1H and 13H
NMR Spectra of Some Azo Dyes Containing Amino or Acetamino Groups.
Dyes and Pigments, 10 (1989) 259-268.
54. P. E.
Hansen, NMR of C=C, C=O, C=N and N=N Double bonds.
In The
Chemistry of Double bonded Functional Groups,ed. S. Patai, Wiley,
55. P. E.
Hansen and
Acta
Chem. Scand., 43 (1989) 710-712.
56. P. E.
Hansen, R. Kawecki, A. Krowczynski and L. Kozerski, Deuterium Isotope Effects
on 13C and 15N Nuclear Shielding in Intramoleculary
Hydrogen‑bonded Compounds. II. Investigation of Enamine Derivatives.
Acta
Chem. Scand., 44 (1990) 826-832.
57. U.
Skibsted and P. E. Hansen, 1H NMR Spin-echo Spectroscopy of
Erythrocytes. Transformation of Exogenous Compounds.
NMR in Biomed., 3 (1990) 248-258.
58. E.
Tüchsen and P. E. Hansen, Hydrogen Bonding Monitored by Deuterium Isotope
Effects on Carbonyl 13C Chemical Shifts in Basic Pancreatic Trypsin
Inhibitor. Intra Residue Hydrogen Bonds in Antiparallel ß-sheet.
Int.
J. Biol. Macromolecules, 13 (1991)
2-8.
59. P. E.
Hansen, U. Skibsted and F. Duus, Long-range Deuterium Isotope Effects in
Tautomeric ß-Thioxoketones. A 1H and 13C NMR Study.
J.
Phys. Org. Chem., 4 (1991) 225-232.
60. L.
Kozerski and P. E. Hansen, Aggregation of Amphiphilic molecules in water. I. L-Phenylethylamine;
1H and 13C NMR Study.
J. Phys. Org. Chem., 4 (1991) 58-66.
61. P. E.
Hansen, Assignment of the Natural Abundance 13C Spectrum of
Proteins using 13C 1H Detected Heteronuclear Multiple
Bond Correlation NMR Spectroscopy. Structural Information and Sterospecific Assignment
from Two- and Three-Bond Carbon-hydrogen Coupling Constants.
Biochemistry
30 (1991) 10457-66.
62. K.
Laali and P. E. Hansen, Protonation (Sulfinylation) of Isomeric
Isopropylpyrenes, 2,7-Di-tert-Butylpyrene, Tetracyclohexyl-and
Tetracylopenytylpyrenes; Remarkably Stable, Sterically Crowded Pyreniun
Cations.
J.
Org. Chem., 56 (1991) 6795-6803.
63. C.
Lauritzen, E. Tüchsen, P. E. Hansen and O. Skovgaard, BPTI and N-Terminal Extended
Analogues Generated by Factor Xa Cleavage and Cathepsin C trimming
of a Fusion Protein Expressed in Eschericia coli..
Protein Expres. Purif. 2 (1991) 372-78.
64. P. E.
Hansen, A. Kolonicny and A. Lycka, Deuterium Isotope Effects on 13C
Nuclear Shielding of Amino and Acetamido Compounds. Tautomerism and
Intramolecular Hydrogen-bonding.
Magn.
Reson. Chem., 30 (1992) 786-96.
65. K.
Laali, T.-Z. Miang and P. E. Hansen, Nitration of Isopropyl pyrenes; Strained
Models for Protonation and Transfer Nitration in the Condensed Phase.
J.
Org. Chem., 57 (1992) 2658-67.
66. P. E.
Hansen, Nuclear Magnetic Resonance (NMR) of Acids and Acid Derivatives. In The Chemistry
of Acid Derivati ves, Vol. 2, Suppl. B2, Ed. S.Patai, Wiley, New
York, p.153-226 (1992).
67. P. E.
Hansen, W. R. Kem and R. S. Norton, NMR Study of Neurotoxin B-IV from the Marine Worm Cerebratulus
lacteus: Sequence - Specific Assignments, Secondary Struc ture and Global Fold.
Eur.
J. Biochem., 210 (1992) 231-240.
68. M.
Munch, Aa. E. Hansen, P. E. Hansen and T. D. Bouman, Ab-Initio Calculations of
Deuterium isotope Effects on hydrogen and Nitrogen nuclear Magnetic Shielding
in the hydrated Ammonium Ion.
Acta
Chem. Scand., 46 (1992) 1065-1071.
69. C.
Lauritzen, O. Skovgaard, P. E. Hansen, and E. Tüchsen, Effects of N-terminal
Extension Peptides on the Stucture and
Stability of Bovine Pancreatic Trypsin Inhibitor Studied by 1H
NMR.
Int.
J. Biol. Macromol., (1992) 326-332.
70. P. E.
Hansen, Substituent Effects on Deuterium Isotope Effects on Nuclear
Shielding. Intra-molecular Hydrogen-
bonded Ketones, Aldehydes and Esters.
Magn.
Reson. Chem. 31 (1993) 27-37.
71. P. E.
Hansen, Long-range Isotope Effects in Hydrogen-bonded Compounds.
Purpurogallins.
Magn.
Reson. Chem., 31 (1993) 71-74.
72. P. E.
Hansen, Aa. E. Hansen, A. Lycka and A. Buvari-Barcza, 2ÄH(D) and 1ÄN(D)
Isotope Effects on Nuclear Shielding of Ammonium Ions in Complexes with Crown
ethers and Cryptands.
Acta
Chem.Scand., 47 (1993) 777-788.
73. P. E.
Hansen, M. Christoffersen and S. Bolvig, VariableTemperature NMR Studies of
2,6-dihydroxy Acylaromatic Compounds. Deuterium Isotope Effects on Chemical
Shifts, Isotopic Perturbation of Equilibrium and Barriers to Rotation.
Magn.
Reson. Chem., 31 (1993) 893-902.
74. K. K.
Laali, P. E. Hansen, E. Gelerinter and J. J. Houser, Oxidation of Sterically
Crowded Alkyl (cycloalkyl)pyrenes. Persistent Dications in SbF5/SO2ClF
and Radical Cations in FSO3H/SO2.
J.Org.Chem.,
58 (1993) 4088-4095.
75. K. K.
Laali and P. E. Hansen, Generation and NMR Studies of Persistent Fluoro (alkyl)
Pyrenium Ions and their Tetrahydro-and Hexahydro- Drivatives in Supracid Media.
J.Org.Chem.,
58 (1993) 4096-4104.
76. P. E.
Hansen, Hydrogen-bonding and Tautomerism studied by Isotope Effects on Chemical
Shifts.
J.Mol.Struct.,
321 (1994) 79-87.
77. P. E.
Hansen, T. Kristensen, S. Christensen and
Magn.Reson.Chem., 32 (1994)
399-408.
78. J.
Abildgaard, P. E. Hansen, J. Josephsen and A. Lycka
Assignment of the Ligating Nitrogen in
o,o'-Dihydroxy-Diaryl-Complexes of Nickel, Palladium- and Platinum(II) by 1H
and 13C NMR Spectroscopy.
Inorganic
Chem., 33 (1994) 5271 - 5277.
79. L.
Kozerski, R. Kawecki and P. E. Hansen, Data for Characterization of the
Geometrical Isomers of â-Sulfinylenamines.
Magn.Reson.Chem.,
32 (1994) 517-524.
80. K. K.
Laali and P. E. Hansen, 13C, 1H and Two-dimensional NMR
studies of Charge Distribution in Sterically Congested Persistent Cycloalkyl
and Alkylpyrenium Ions Generated by Protonation in Superacid Media.
J.C.S.
Perkin Trans 2, (1994) 2249-2258.
81. P. E.
Hansen, J. Abildgaard and Aa. E. Hansen, Ab Initio Calculations of
External Charge Effects on the Isotropic 13C, 15N and 17O
Nuclear Shieldings of Amides.
Chemical
Phys.Lett., 224 (1994) 275-282.
82. P. E.
Hansen, S. Bolvig and Th. Kappe, Intramolecular Hydrogen Bonding and
Tautomerism of Acyl Pyran-2,4-diones, 2,4,6-Triones and Pyridiones and
Benzannelated Derivatives. Deuterium
Isotope Effects on 13C NMR Chemical Shifts.
J.C.S.
Perkin Trans. 2, (1995) 1901 - 1907.
83. K. K. Laali, P. E. Hansen, J. J. Houser and
M. Zander, Protonation of Benzo[a]pyrene, Dibenzo[a,e]pyrene and Benzo[e]pyrene
in Superacids: NMR Studies of Charge Distribution in the Persistent Arenium
Ions and AM1 Calculations.
J.C.S.
Perkin Trans. 2, (1995) 1781 - 1790.
84. P. E.
Hansen, S. Bolvig, F. Duus, M. V. Petrova, R. Kawecki and L. Kozerski,
Deuterium Isotope Effects on 13C Chemical Shifts of Intramolecularly
Hydrogen-bonded Olefins.
Magn.Reson.Chem.,
33 (1995) 621-631.
85. K. K. Laali,
S. Bolvig and P. E. Hansen, Mono- and Dinitro-alkyl(cycloalkyl)pyrenes in
Superacid Media: Dihydroxyiminium-(Oxo-iminium)pyrenium Dications;
cyclization to Long-lived Oxazoline- (and 1,2-oxazine-)pyrenium Ions, ring
Opening to Nitrosoalkylpyrenium and Nitroso Radical Cation Salts with Unprecedented
Stability.
J.C.S.
Perkin Trans. 2, (1995) 537-551.
86. L.
Kozerski, R. Kawecki, P. Krajewski, P. Gluzinski, K. Pupek, P. E. Hansen and M.
Williamson, Searching Conformational Space in flexible Molecules using NOE
Effects and Molecular Modelling.
J.Org.Chem.,
60 (1995) 3533-3538.
87. P. E. Hansen, Isotope Effects on Chemical
Shifts as a Tool in Structural Studies.
Doctoral
Thesis.
88. J. R.
Powell, S. Pandey, B. J. Miller, W. E. Acree, P. E. Hansen and J. C. Fetzer,
Polycyclic Aromatic Hydrocarbon Probes. Part XII. Dissimilar Fluorescence
Excitation/Emission Behaviour between Alkylpyrene and Alkylcoronene
Derivatives and the Parent PAH Molecule.
J.Lumin. 69 (1996) 27 -34.
89. P.E.Hansen, F. Duus,
S. Bolvig and T. S. Jagodzinski,
Intra-molecular Hydrogen Bonding of the Enol forms of â-Ketoamides and
â-Ketothioamides. Deuterium Isotope
Effects on 13C Chemical Shifts.
J.Mol.Struct.
378 (1996) 45 - 59.
90. S. Bolvig and P. E. Hansen, Deuterium Isotope Effects on 13C Chemical Shifts as a
Probe for Tautomerism in Enolic â-Diketones.
Magn.Reson.Chem.
34 (1996) 467 - 478.
91. J. G. Sosnicki, T. S. Jagodzinski, B.
Nowak-Wydra and P. E. Hansen, Complete Assignment of 1H and 13C
NMR Spectra and Conformational Analysis of Thioamide Cannabinoids.
Magn.Reson.Chem.
34 (1996) 667 - 674.
92. K. K. Laali and P. E. Hansen, Mono- and
diprotonation of Dihydropyrene and 2,7-di-tert-Butylpyrene and their conversion
to Pyrenium ions; influence of the Radical Cation and its Potential utility in
NMR Assignments of the Arenium Ions of readily oxidizable PAHs.
Res.Chem.
Interm. 22 (1996) 737-751.
93. T. Nielsen, K. Siigur,
Environm.Sci.Technol.
31 (1997) 1102-1108.
94. C.
Helweg, T. Nielsen and P. E. Hansen, QSPRs compared with HPLC experiments for
the estimation of Kow for N-PACs.
QSAR in
Environmental Sciences, VII., F. Chen and G. Schüürmann, eds. Chap. 12 p.
173-184 (1997).
95. P. E.
Hansen and
Magn.Reson.Chem.
35 (1997) 520-528.
96. C. Helweg, T. Nielsen and P. E. Hansen,
Determination of Octanol-water Partition Coeffecients of Polar Polycyclic
Aromatic Compounds (N-PAC) by High Performance Liquid Chromatography.
Chemosphere
34 (1997) 1673-1687.
97. C.
Helweg, T. Nielsen and P. E. Hansen, Determination of Kow of
substituted polycyclic aromatic compounds.
Polycyclic
Aromatic Hydrocarbons, 12 (1997)
187-200.
98. K. K.
Laali, S. Hollenstein, R. G. Harvey and P. E. Hansen, Stable Ion Studies of
the Chrysene Skeleton: Protonation of Chrysene, 6-Halochrysene (F,Cl,Br),
6-Acetylchrysene and 4H-Cyclopenta[def]chrysene: NMR Studies of Charge
Distribution in Chrysenium Cations and AM1 Calculations.
J.Org.
Chem. 62 (1997) 4023-4028.
99. P. E.
Hansen, S. Bolvig, A. Buvari-Barzca and A. Lycka, Deuterium Isotope Effects on 19F
Chemical Shifts.
Acta
Chem.Scand., 51 (1997) 881-888.
100. K. K.
Laali and P. E. Hansen, Charge Delocalization Pathways in Persistent 1-, 2-
and 4-Pyrenyl-methylcarbenium ions as Models of PAH-Epoxide Ring Opening; NMR
Studies in Superacids and AM1 Calculations.
J.Org.Chem. 62
(1997) 5804-5810.
101. K. K.
Laali, S. Hollenstein and P. E. Hansen, Probing the Charge Delocalization Mode
in Methyl, Dimethyl and Methylene-Bridged Phenanthrenium Ions. NMR Studies of Persistent Monon and
Dications and AM1 Calculations.
J.C.S.Perkin
II (1997) 2207-2213.
102. T.
Dziembowska, A. Rozwadowski and P. E. Hansen, Intramolecular Hydrogenbonding
of 8-Hydroxyquinoline N-oxides, Quinaldinic Acid N-oxides and Quinaldinamide
N-oxide. Deuterium Isotope Effects on 13C Chemical Shifts.
J.Mol.Struct. 436-437
(1997) 189-199.
103. D. Kh.
Zheglova, D. G. Genov, S. Bolvig and P. E. Hansen, Deuterium Isotope Effects
on 13C Chemical Shifts of Enaminones.
Acta
Chem.Scand., 51 (1997)
1016-1023.
104. S.
Bolvig, F. Duus and P. E. Hansen, Tautomerism of Enolic 2-Acyldimedones,
Meldrum and N,N-dimethylbarbituric Acids by means of Deuterium Isotope
Effects on 13C Chemical Shifts.
Magn.Reson.Chem.
36 (1998) 315-324.
105. P. E.
Hansen, W. Zhang, C. Lauritzen, S. Bjørn, L. C. Petersen, K. Norris, O. H.
Olsen and Chr. Betzel, 13C NMR, X-ray and Differential
Scanning Calorimetry Investigations of Truncated BPTI Mutants.
Biochemistry 37
(1998) 3545-53.
106. E. V.
Borisov, W. Zhang, S. Bolvig and P. E. Hansen, nJ(C,OH) Coupling Constants
of Intramolecularly Hydrogen Bonded Compounds.
Magn.Reson.Chem.
36 (1998) S104-110.
107. P. E.
Hansen, M. Langgård and S. Bolvig, Isotope Effects on Chemical Shift in
Tautomeric Systems with Double Proton transfer. Citrinin.
Polish
J.Chem. 72 (1998) 269-276.
108. P. E.
Hansen, J. Spanget-Larsen and K. K. Laali, Conformational Studies of
Triaryl (Phenyl and 1-Pyrenyl) Methyl Carbenium Ions: Semiempirical
Calculations and NMR Investigations under stable Ion Conditions.
J.Org.Chem.,
63 (1998) 1827-35.
109. P. E.
Hansen, Z. Rozwadowski, T. Dziembowska; One Bond Deuterium Isotope Effects on 15N
Chemical Shifts, 1ÄN(D), in Schiff Bases.
Berichte
Bunsengesel Chem.Phys., 102
(1998) 410-13.
110. L.
Kozerski, R. Kawecki, P. Krajewski, B. Kwiecien, D. W. Boykin, S. Bolvig and P.
E. Hansen, 17O Chemical Shifts of Intramolecularly Hydrogen Bonded
Compounds.
Magn.Reson.Chem.,
36 (1998) 921-928.
111. K. K. Laali and P. E. Hansen, Futher Insigth
into the Reactive Intermediates formed by Superacids protonation of Crowded
Nitro-PAHs: Persistent Dihydroxy-iminium-Pyrenium and Hydroxy-iminium-Pyreneium
Dications.
J.C.S.
Perkin Trans 2, (1998) 1167-72.
112. J.
Abildgaard, S. Bolvig and P.E. Hansen,
Unravelling the Electronic, Steric and Vibrational Contributions to Deuterium
Isotope Effects on 13C Chemcial Shifts by ab initio Model Calculations. Intramolecular Hydrogen bonded o-Hydroxy
Acyl Aromatics.
J.Am.Chem.Soc. 120
(1998) 9063-9069.
113. K. K.
Laali, M. Tanaka and P. E. Hansen, First Examples
Of Fluorinated
and Chlorinated Polycyclic Aromatic hydrocarbons (PAH) Dications from
Benzo[a]pyrene, Pyrene and their Alkyl-Substituted Derivatives.
J.Org.Chem. 63
(1998) 8217-8223.
114. Z.
Rozwadowski,
J.C.S.
Perkin Trans 2 (1999) 2809-2818.
115. S.
Bolvig, P. E. Hansen, D. Wemmer and P. Williams, Deuterium Isotope Effects on 17O Chemical Shifts of
Intramolecularly Hydrogen Bonded Systems.
J.Mol.Struct.
509 (1999) 171-181.
116. S.
Bolvig and P. E. Hansen, Isotope Effects on chemical shifts as an analytical
tool in structural studies of intramolecularly hydrogenbonded compounds.
Current
Org. Chem. 4 (2000) 19-54.
117. B. Andresen, F. Duus, S. Bolvig and P. E.
Hansen,
Variable
Temperature 1H and 13C NMR Spectroscopic Investigation
of the Enol-Enethiol tautomerism of β-Thioxoketones.
Isotope Effects due to Deuteron Chelation.
J.Mol.Struct.
552 (2000) 45-63.
118. S.
Bolvig, P. E. Hansen, H. Morimoto, D. Wemmer and P. Williams, Primary Tritium
and Deuterium Isotope Effects on Chemical Shifts of Compounds having an
Intramolecular Hydrogen bond.
Magn.Reson
Chem. 38 (2000) 525-535
119. P. E.
Hansen, Isotope Effects on Chemical Shifts of Proteins and Peptides.
Review.
Magn.Reson.Chem. 38
(2000) 1-10.
120. P.E. Hansen, F. Duus, R. Neumann, T.S.
Jagodzinski, Deuterium Isotope Effects of o-Hydroxythioamides, 2Ä-thiazolines
and 5-Acyl-2-thiobarbituric acids.
Polish.
J. Chem. 74 (2000) 409-420.
121. N.
Rasmussen, D. Lloyd, R.G. Ratcliffe, P.E. Hansen and I. Jakobsen, 31P
NMR for the Study of P metabolism and translocation in arbuscular
mycorrhizal fungi.
Plant
Soil, 226 (2000) 245-253.
122. W.
Zhang, M.G. Hinds, G. Anderluh, P.E. Hansen and R.S. Norton, Sequence-specific
resonance assignment of the potent cytolysin Equinatoxin II,
J.Biomol.
NMR. 18 (2000) 281-282.
123. J.
Abildgaard and P. E. Hansen, Quantum
Mechanical Model Calculations in
Chemistry: Structure, Vibrations, Chemical Shifts and Isotope Effects on
Chemical Shifts.
Polish
Chem. News 54 (2000) 846-887.
124. K.K.
Laali, T. Okazaki and P.E. Hansen, Stable Ion Study of Regioisomeric
Caboxonium-Substituted Pyrenium Ions; Directive Effects, Charge Delocalization
Mode and Conformational Aspects.
J.Org.
Chem. 65 (2000) 3816-3828.
125. W.
Kozminski, E. Bednarek, W.Bocian, J.Sitkowski,P.E.Hansen, B.Kwiecien and L.
Kozerski, application of HECADE method to the measurement of long-range
heteronuclear 13C, 1H spin-spin coupling constants in
tautomeric β-sulfonyl
enamines.
Magn.Reson.Chem. 38
(2000) 839-844.
126. L.
Carlsen, M. Thomsen, S. Dobel, P. Lassen, B.B. Mogensen and P.E. Hansen, The
interaction between esfenvalerate and humic substances of different origin.
Humic Substances. Versatile components of plants, soil and
water. E.A.Ghabour and G.Davies eds.
Royal society of Chemistry, Special Pub no. 259 (2000) 177-189
127. W.Ziechman,
M. Hübner, K.E.N. Jonassen, W.Batsberg, T.Nielsen, S.Hahner, P.E.Hansen and
A.-L. Gudmundsson, Humic Substances and Humification.
Humic
Substances. Versatile components of
plants, soil and wateer. E.A.Ghabour and G.Davies eds. Royal society of
Chemistry, Special Pub no. 259,
(2000) 9-20
128. P. E. Hansen, U. Skibsted, J. Nissen, C. D. Rae and P.W.Kuchel, 1H NMR of Compounds with low Water Solubility in the Presence of Erythrocytes. Effects of
Emulsion Phase Separation.
Eur.Biophysics J. 30 (2001) 69-74.
129. K. Kollist-Siigur, T. Nielsen, C. Grøn, P. E. Hansen,C. Helweg, K.E.N. Jonassen, O. Jørgensen and U.Kirso, Sorption of Polycyclic Aromatic Compounds to Humic and Fulvic Acid HPLC Column Materials.
J.Environm.Qual. 30 (2001) 526-537.
130. L. Kozerski, A. P. Mazurek, R. Kawecki, P. Krajewski, E. Bednarek, J. Sitkowski, M. P. Williamson, A. J. G. Moir and P. E. Hansen. Gapped duplex decamer DNA with PEG6 tether
Nucleic Acid Res. 29 (2001) 1132-43.
131. A. Wesolowska, T. Jagodzinski, J.G. Sosnicki and P.E. Hansen, Synthesis of the N- Allythioamide Derivatives of cyclic oxo- and ioxo acids and their cyclization to the derivatives of 4,5-Dihydrothiazole.
Polish J. Chem. 75 (2001) 387-400
132. T. Dziembowska, Z.Rozwadowski, S.Filarowski and P.E.Hansen, A multinuclear NMR study of proton transfer equilibrium in Schiff bases derived from 2-hydroxy-1-naphtaldehyde. Deuterium isotope effects on 13C and 15N chemical shifts. Magn.Reson.Chem. 39 (2001) S67-80.
133. J.G. Sosnicki, T.S. Jagodzinski and P.E. Hansen, Reactivity and Diastereoselectivity of Michael Additions of Amines to Achiral a,b-Unsaturated Thioamides.
Tetrahedron, 57 (2001) 8705-18134. A.Posokhov, A.Gorsky, J.Spanget-Larsen, F.Duus, P.E. Hansen and J.Waluk, The Structure of the Phototransformation product in monothiodibenzoylmethane
Chem. Phys. Lett. 350 (2001) 502-8.
135. P. E. Hansen, Intrinsic Deuterium Isotope Effects on Chemical Shifts
Nukleonika 47 (2002) S37-S42.
136. M.G.Hinds, W.Zhang, G. Anderluh, P.E.Hansen and R.S.Norton, Solution Structure of the eucaryotic pore-forming cytolysin equinatoxin II: Implications for pore formation,
J.Mol. Biol. 315 (2002) 1219-29.
137. L. Kozerski, B. Kwiecien, P. Krajewski, R. Kawecki, E. Bednarek, J. Sitkowski, W. Bocian, W. Kozminski and P.E. Hansen. The tautomeric Equilibrium and Stereochemistry of a-sulfonylenamines
New J.Chem. 26 (2002) 1060-69.
138. E.Grech, J.Klimkiewich, J.Nowicka-Scheibe, M.Piertzak, W.Schilff, A.F.Pozharski, S.Bolvig, J.Abildgaard and P.E.Hansen, Deuterium Isotope Effects on 15N, 13C and 1H Chemical Shifts of Proton Sponges.
J.Mol.Struct. 615 (2002) 121-140.
139. L.Carlsen, M.Thomsen, S.Dobel, P.Lassen, B.B.Mogensen and P.E.Hansen, Reverse quantitative structure-activity relationship (QSAR) for modelling
the sorption of esfenvalerate to dissolved organic matter (DOM). A multivariate approach.
Chemosphere, 49 (2002) 1317-1325.
140. M.Thomsen, P.Lassen, S.Dobel, P.E.Hansen, L.Carlsen and B.B.Mogensen. Characterisation of humic substances of different origin: a multivariate approach for quantifying the latent properties of dissolved organic matter. .
Chemosphere, 49 (2002) 1327-1337.
141. A.M.Scharff, H.Egsgaard, P.E.Hansen and L.Rosendahl, Exploring Symbiotic Nitrogen Fixation and Assimilation in Pea Root Nodules by in vivo 15N NMR Spectroscopy and LC-Mass Spectroscopy.
Plant Physiol. 131 (2003) 367-78.
142. P.E. Hansen and J.Spanget-Larsen, NMR and IR Spectroscopy of Phenols. In Phenols ed. By Z. Rapporport, p. 333-393 Wiley (2003)
143. L.Kozerski, S.Urbanczyk-Lipkowska, K.Kamienski, W.Bocian, E.Bednarek, J.Sitkowski, K.Zakrewska, K.T.Nielsen and P.E.Hansen, Solution and solid state 13C NMR and X-ray studies of Genistein complexes with amines. Potential biological function of the C-7, C-5, C-4’-OH groups. .
Org.Biomol.Chem. 1 (2003) 3578-3585.
144. K.E.N. Jonassen, T. Nielsen and P.E. Hansen, The application of HPLC humic acid columns in determination of KOC of polycyclic aromatic compounds (PAC)
Env. Toxicol. Chem. 22 (2003) 741-45.
145. P.W.Kuchel, B.E.Chapman, W.A.Bubb, P.E.Hansen, C.J.Durrant and M.P.Herzberg, Magnetic Susceptibility: Solutions, Emulsions and Cells,
Concepts NMR, 18A (2003) 56-71.
146. T.Rohrlack, K.Christoffersen, P.E.Hansen, W.Zhang, O.Czaarcki, M. Henning, J.Fastner, B.A.Neilan and M.Kaebernick, Isolation, characterization and quantitative analysis of microviridin J, a new Micorsystis metabolite toxic to Daphnia
J.Chem. Ecology, 29 (2003) 1757-70.
147. P.E.Hansen, One-bond C-H Coupling Constants of Acetyl Groups as Possible Monitors of CH Hydrogen Bonds and Electric Field Effects
Polish J. Chem. 77 (2003) 1683-91.
148. Y.Posokhov, A.Gorsky, J.Spanget-Larsen, F.Duus, P.E.Hansen and J.Waluk, Thioacetylacetone: Structural and vibrational assignments.
Chem. Phys. Chem. 5 (2004) 495-502.
149. N.Rasmussen, P.E.Hansen and I.Jakobsen, Phosphate pools in an arbuscular mycorrhizal fungus, Glomus intraradices, studied by 31P NMR spectroscopy
New Phytol. 162 (2004) 783-94.
150. C.B.Nielsen, M.Petersen, E.B.Pedersen, P.E.Hansen and U.F.Christensen, Structure determination of a Modified DNA Oligonucleotide Containing a New Intercalating Nucleic Acid.
Bioconj. Chem. 15 (2004) 260-69.
151. P.E.Hansen and A. Filarowski, Characterisation of the PT-form of o-Hydroxy Acylaromatic Schiff bases by NMR Spectroscopy and DFT Calculations.
J.Mol.Struct. 707 (2004) 69-75.
152. A. Filarowski, A. Koll, A. Kochel, J.Kalenik and P.E.Hansen, The intramolecular hydrogen bond in chlorosubstituted ortho-hydroxy acetophenones.
J.Mol.Struct. 700 (2004) 67-72.
153. J.G.Sosnicki and P.E.Hansen, Temperature coefficients of NH chemical Shifts of Thioamides in Relation to Structure.
J.Mol. Struct. 700 (2004) 91-103.
154. W.Bocian, R.Kawecki, E.Bednarek, J.Sitkowski, A.Piertzyk, M.P.Williamson, P.E.Hansen and L.Kozerski, Interaction of the camptothecin family with non-nicked DNA oligomers,
Chem. Eur. J. 22 (2004) 5776-5787.
155. L.Kozerski , B. Kwecien, R.Kawecki, Z. Urbanczyk-Lipkowska, W.Bocian, , E.Bednarek, J.Sitkowski, J.Maurin, L. Pazderski and P.E.Hansen, Hydrogen Bonds in “push-pull” enamines.
New J. Chem. 28 (2004) 1562-1567.
156. T.Dziembowska, P.E.Hansen and Z. Rozwadowski, Studies based on deuterium isotope effects on 13C NMR chemical shifts.
Progress in NMR. 45 (2004) 1-29.
157. H.O.Desseyn, S.P.Perlepes, K.Clou, N.Blaton, B.J.Van der Veken, R.Dommisse and P.E.Hansen, Theoretical, Structural,Vibribrational, NMR and Thermal evidence of the Inter versus Intramolecular Hydrogen Bonding in Oxamides and Thiooxamides,
J.Phys.Chem. A 108 (2004) 175-82.
158. J.B.Sosnicki and P.E.Hansen, New Deuterium Isotope Effects on 19F and 13C Chemical Shifts across Intramolecularly Hydrogen Bonds of Non-resonance Assisted Systems.
Tetrahedron Lett. 46 (2005) 839-42.
159. Quang Ton That, Kim Phi Phung and Poul Erik Hansen, Schiff Bases of Gossypol. A NMR and DFT Study.
Magn.Reson.Chem. 43 (2005) 302-8.
160. P.M. Dominiak, A. Filarowski, P.E. Hansen og K. Wozniak, Factor Analysis of 13C Isotope Effects and 13C NMR Chemical Shifts in Schiff Bases.
Chem. Eur.J. 11 (2005) 4758-4766.
161. S.Bolvig , K.Wozniak and P.E. Hansen, Steric Compression Effects of intramolecularly Hydrogen Bonded o-Hydroxy Acyl Aromatics. A X-ray and 13C NMR Study.
J.Mol. Struct. 749 (2005) 155-168.
162. A. Filarowski, A. Koll, M.Rospenk, I.Krol-Starzomska and P.E.Hansen, Tautomerism of sterically hindered Schiff bases. Deuterium Isotope Effects on 13C Chemical Shifts.
J.Phys. Chem. A. 109 (2005) 4464-73.
163. E.V.Borisov, E.V.Skorodumov, V.M.Pachenskaya and P.E.Hansen, Variable Temperature NMR study of Enolic Forms of Benzoylacetones.
Magn.Reson.Chem. 43 (2005) 992-998.
164. Doan Ngoc Nhuan, Le Nogoc Thach, Poul Erik Hansen and Fritz Duus. Preparation of dihydrocyclocitral from citronellal under solvent-less microwave irradiation.
Tetrahedron Lett. 46 (2005) 6749-51.
165. P.E. Hansen, NMR Studies of Compounds with Intramolecular Hydrogen bonds, In Isotope Effects in Chemistry and Biology, Eds. A. Kohen and H.-H. Limbach, CRC (2006).
166. M.West-Nielsen, P.Dominiak, K.Wozniak, and P.E.Hansen, Strong Hydrogen Bonding involving Nitro and Acetyl groups. Deuterium Isotope Effects on 13C Chemical Shifts.
J. Mol. Struct. 789 (2006) 81-91.
167. J.P.Hofmann, P.E.Hansen, A.D. Bond and F.Duus, Tautomerism in 3-Acyltetronic Acids Revisited. A Spectrochemometric Approach to Tautomerism and Hydrogen- Bonding.
J. Mol. Struct. 790 (2006) 80-88.
168. Trung Thanh Nguyen, Thach Ngoc Le, Poul Erik Hansen and Fritz Duus
Preparation and structural characterization of a new class of stable thioketones: ortho-hydroxythioacetophenones.
Tetrahedron Lett. 47 (2006) 8433-35.
169. J. Abildgaard, P.E.Hansen, J.Josephsen, B.K.V. Hansen, H.O.Sørensen and S. Larsen, Synthesis and Characterization of Nickel-, Palladium- and Platinum(II) Complexes of Three o,o-dihydroxydiarlazo Dyes. Determination of the coordination geometry of theis comprehensive series of tridentate diaryl dye complexes by combining results from NMR and X-ray experiements with theoretical ab initio calculations.
Inorg Chim Acta. 359 (2006) 4493-4502.
170. A.Gorski, Y.Posokhov, B.KV.Hansen, J.Spanget-Larsen, J.Jasny, F.Duus, P.E.Hansen and J.Waluk, Photochromism and polarizations spectroscopy of p- methyl(thiobenzoyl)acetone.
Chem. Phys. 328 (2006) 205-15.
.
171.B.KV.Hansen, A.Gorski, Y.Posokhov, F.Duus, P.E.Hansen and J.Waluk and J. Spanget-Larsen, Monothiobenzoylmethane: Structural and vibrational assignments.
Vibrational Spectroscopy, 43 (2007) 53-63.
172. Trung Thanh Nguyen, Thach Ngoc Le, B.V.K. Hansen, Fritz Duus and Poul Erik Hansen, Hydrogen Bonding of Novel o-Hydroxythioacetophenones and related compounds studies by Deuterium Isotope Effects on 13C Chemical Shifts.
Magn.Reson.Chem. 45 (2007) 245-52.
173. P.E.Hansen, F.Kamounah, B.V.K. Hansen and J.Spanget-Larsen, Conformational and Tautomeric Eccentricities of 1,8-Dihydroxy-2-acetylnaphthalenes.
Magn.Reson.Chem. 45 (2007) 106-117.
174. N.N.Doan, T.N.Le, H.C.Nguyen, P.E.Hansen and F.Duus. Ultrasound Assisted Synthesis of 5,9-Dimethylpentadecane and 5,9-dimethylpentadecane- the sex pheromone of Leucoptera Coffeella
Molecules, 12 (2007) 2080-2088.
175. A.Gorski, Y.Posokhov, B.KV.Hansen, J.Spanget-Larsen, J.Jasny, F.Duus, P.E.Hansen and J.Waluk, Photochromism in p-methyl(thiobenzoyl)acetone and related b- thioxoketones.
Chem.Phys. 338 (2007)11-22.
176. P.E. Hansen, Isotope Effects on Chemical Shifts of Hydrogen Bonded Systems.
J. Label. Comp. Radiopharm. 50 (2007) 967-81.
177. Jacek G. Sosnicki, Morten Langaard and Poul Erik Hansen, Long-range Deuterium Isotope Effecs on 13C chemical Shifts of intramolecularly hydrogen bonded N- substituted-3-(cycloamino) thiopropionamides or amides: a case of electric field effects
J. Org. Chem. 72 (2007) 4108-4116.
178 C.N.Albers, M, Bjørn-Mortensen, PE.Hansen, H. Ramløv and T.F.Sørensen, Purification and structural Analysis of a Type III Antifreeze protein from the European Eelpout Zoarces Vivparus
Cryolett. 28 (2007) 51-60.
179. A. Filarowski, A. Kochel, P.E. Hansen, A. Urbanowicz, K. Szymborska
The Role of Ring Substituents on Hydrogen Bonding of 5-Cyano-2- hydroxyacetophenone and 2-Hydroxy-4-methoxy-5-nitroacetophenone in the Ground and Excited states.
J.Mol.Struct. 844-845 (2007) 77-82.
180. P.E.Hansen, F.S.Kamounah and S.Ullah, Intramolecular Hydrogen Bonding of o- Hydroxyesters and Related Compounds evaluated by Deuterium Isotope Effects on 13C Chemical Shifts and Principal Component Analysis.
J.Mol.Struct. 844-845 (2007) 300-307.
181. P.E.Hansen, Deuterium Isotope Effects on 13C Chemical Shifts of Nitromalonamide
Magn.Reson.Chem. 46 (2008) 726-9.
182. W.Bocian, R.Kawecki, E.Bednarek, J.Sitkowski, M.P.Williamson, P.E.Hansen and L.Kozerski, Model DNA oligomer with a nick motif for binding tests of TopoI poisons.
Chem. Eur. J. 14 (2008) 2788-94.
183. Jan Nissen, Birgitte Thuesen Olesen, Jørgen Clausen and Poul Erik Hansen, 1H-NMR studies of metabolic effects of endo-and exogeneous compounds on astroglia cells cultivated in vitro.
Open Magn.Reson. J. 1 (2008) 88-94
184. D.H.Ngan, H.T.C. Hoai, P.E.Hansen, O.Vang and L.M Huong, Bioactivities and Chemical constituents of a Vietnamese Medicinal Plant Che Vang JaSminum Subtriplinerve Blume,
Natural Product Research 22 (2008) 942 - 949
185. C.N.Albers, G.T. Banta, O.S.Jacobsen and P.E.Hansen, Characterisation and structural modelling of Danish field humic substances displaying significant differences compared to previously proposed structures.
Eur. J. Soil Sci. 59 (2008) 693-705.
186. A. Filarowski, A. Koll, P.E.Hansen and M. Kluba, Intramolecular hydrogen bonding and proton transfer in o-hydroxy aryl ketiomines.
J.Phys. Chem. A. 112 (2008) 3478-85.
187. Teresa Borowiak, Grzegorz Dutkiewicz, Jacek G. Sośnicki, Tadeusz S. Jagodziński, Poul Erik Hansen, Secondary thioamide group deformations in different surroundings: the case of intramolecular N-H···N hydrogen bond – an X-ray study combined with theoretical calculations.
J.Mol.Struct. 892 (2008) 438-45.
188. Lars Borch Smith and Poul Erik Hansen, Intramolecular Hydrogen Bonding of 5-Acyl-3-methylrhodanines.
Z. Phys. Chem. 222 (2008) 1213-1223.
189. C.N.Albers, P.E.Hansen G.T.Banta and O.S.Jacobsen, Characterization
of some
humic substances and determination of their influence on the microbial
degradation of diuron in soil.
Env.Sci.Technol. 42 (2008) 8687-91.
190. C.N.Albers, G.T.Banta, P.E.Hansen and O.S.Jacobsen. Does organic matter influence sorption and fate of glyphosate in soil? Comparing different soils and humic substances.
Env. Pollut. 157 (2009) 2865-70.
191. J.Abildgaard, A.LiWang, M.N.Manolo and P.E.Hansen, Peptide Deuterium Isotope Effects on Backbone 15N Chemical Shifts in Proteins.
J.Biol. NMR. 44 (2009) 119-24.
192. P.E.Hansen, Z.Rozwadowski and T.Dziembowska, Nuclear Magnetic Resonance Spectroscopy of Hydroxy Schiff bases.
Curr. Org. Chem. 13 (2009) 194-215.
193. Jennifer H. Tomlinson, Saif Ullah, Poul Erik Hansen and Mike P. Williamson
Characterisation of salt bridges to lysines in the Protein G B1 domain.
J.Am.Chem.Soc. 131 (2009) 4674-84.
194. Ly D. Ha, Poul Erik Hansen , Ole Vang, Fritz Duus, Hung D. Pham,Lien-Hoa D. Nguyen. Cytotoxic geranylated xanthones and O-alkylated derivatives of a-mangostin.
Chem Pharm Bull. 57 (2009) 830-34.
195. Pham Nguyen Tuyen, Nguyen Kim Phi Phung, Wei Zhang, Fadhil S. Kamounah and Poul Erik Hansen. Synthesis and NMR studies of novel hydroxyflavones, hydroxyflavothiones, hydroxyflavanones and hydroxyflavanonethiones.
Magn.Reson Chem. 47 (2009) 1043-54
196. Birgitte Thuesen Olesen, Wei Zhang, Jørgen Clausen, Ole Vang and Poul Erik Hansen, Effect of Paraquat and Amyloid-β-peptide on the primary astrocyte metabolism studied by 1H-NMR.
Open Magn.Reson. J. 2 (2009) 880-92.
197. Daniel J. O´Leary Danel D. Hickstein, Bjarke K.V.Hansen and Poul Erik Hansen, Theoretic and NMR Studies of Deuterium Isotopic Perturbation of Hydrogen Bonding in Symmetrical Dihydroxy Compounds.
J.Org. Chem. 75 (2010) 1331-1342. (Featured article).
198. Christian Nyrop Albers, Poul Erik Hansen and Ole Stig Jacobsen, Methodological problems in determining TCAA in soils – the discovery of novel natural trichloroacetyl containing compounds and their interference with a common method for determining TCAA in soil and vegetation. J. Environmental Monitor 12 (2010) 672-80.
199 . W. Zhang, Liu Ming, Poul Erik Hansen, Yang Bo, Zhao Xia and Yu Guangli, Total NMR assignment and fine structure of k-Carrageenan-derived odd number Oligosaccharides.
J.Phycol. 46 (2010) 835-43.
200. Christian Nyrop Albers, Poul Erik Hansen, 13C-NMR chemical shift databases as a quick tool to evaluate structural models of humic substances.
Open.Magn.Reson.J. 3 (2010) 96-105.
201. C. N. Albers, P. E Hansen, O. S Jacobsen, Trichloromethyl compounds - natural background concentrations and fates within and below coniferous forests
Science Total Environm., 408 (2010) 6223-34
202. Saif Ullah, Wei Zhang and Poul Erik Hansen, Deuterium Isotope Effects on 13C and 15N Chemical Shifts of Intramolecularly Hydrogen-Bonded β-Enamine derivatives of Meldrum’s and Tetronic acid.
J. Mol.Struct. 976 (2010) 377-391
203. D. Hauchecorne, B.J. van der Veken, W.A. Herrebout, P.E. Hansen. A 19F NMR study of C-I....p halogen bonding.
Chem.Phys. 381 (2011) 5-10.
204. Fadhil.S.Kamounah, Peter Christensen and Poul Erik Hansen, Acetyl cedrene and its follower. An Isotopic, NMR and MS Structure elucidation and deuteriation Study.
J. Label. Comp. Radiopharm. 54 (2011) 126-31.
205. P.E.Hansen, A.S.Peregudov, D.N.Kravtsov, A.I.Krylova, G.M.Babakhina and L.S.Golovchenko, Prototropic processes in benzaurins. 19F and 1H NMR spectra of fluoro- and methylsubstituted 4-hydroxyphenyl-diphenylcarbinols, related fuchsones and benzaurins
Central. Eur.J.Chem. 9 (2011) 253-264
206. Hiep D. Nguyen, Binh T. D. Trinh, Quyen N. Tran, Hoan D. Nguyen, Hung D. Pham,
Poul Erik Hansen, Fritz Duus, Joseph D. Connolly, Lien-Hoa D. Nguyen, Friedolanostane, friedocycloartane and benzophenone constituents of the bark and leaves of Garcinia benthami
Phytochemistry 72 (2011) 290-295
207. Phuong Tuyet Nguyen, Binh Xuan Thi Lam, Anders Rand Andersen, Poul Erik Hansen, Torben Lund. Photovoltaic performance and characteristics of dye sensitized solar cells prepared with the N719 thermal degradation products [RuL2(NCS)(4-tert-butylpyridine)]+ and [RuL2(NCS)(1-methylbenzimidazole)]+.
Eur. J. Inorg. Chem. (2011) 2533-39.
208. Saif Ullah, Takayoshi Ishimoto, Mike P.Williamson and Poul Erik Hansen, Ab initio Calculations of Deuterium Isotope Effects on Chemical Shifts of Salt bridged lysines
J.Phys.Chem. B 115 (2011) 3208-15.
209. Jens Spanget-Larsen, Bjarke K.V. Hansen and Poul Erik Hansen, OH stretching frequencies in systems with intramolecular hydrogen bonds. Harmonic and anharmonic analyses
Chem. Phys. 389 (2011) 107-115. Doi: 10.1016/j.chemphys.2011.09.011
210. Ming Liu, Poul Erik Hansen and Xiukun Lin, Bromophenols in marine algae and their bioactivities.
Marine Drugs 9 (2011) 1273-92.
211. Poul Erik Hansen, Deuterium Isotope Effects on 14,15N Chemical Shifts of Ammonium Ions. A Solid State NMR Study.
Int.J.Inorg. Chem. (2011)
212. Ly D. Ha, Poul Erik Hansen, Fritz Duus, Hung D. Pham, Lien-Hoa D. Nguyen. Oliveridepsidones A-D, four prenylated depsidones from the bark of Garcinia Olivieri.
Magn.Reson. Chem. 50 (2011) 242-45.
213. Thu Hoai Thi Nguyen, Khanh Phuc Lam, Poul Erik Hansen and Kim Phi Phung,
Some triterpenoids and phenolic compounds from leaves of Sonneratia Alba
J.E.Smith and their Acethylcholineesterase inhibition,
J.Science and Tech. Vietn. 49 (2011) 1-8.
214. Poul Erik Hansen and Jens Spanget-Larsen, Prediction of OH stretching frequencies in systems with intramolecular hydrogen bonds.
J. Mol.Struct. 1018 (2012) 8-13.
215. Ly D.Ha, Poul Erik Hansen, Fritz Duus, Lien-Hoa Nguyen and Hung D.Pham, A New Chromanone Acid form the Bark of Calophyllum dryabalanoides.
Phytochemistry letters, 5 (2012) 287-91.
216. Poul Erik Hansen, Phuong Tuyet Nguyen, Jacob Krake, Jens Spanget-Larsen, Torben Lund. Dye-sensitized Solar Cells and complexes between Pyridines and Iodines. A NMR, IR and DFT study.
Spectrochim Acta A. 98 (2012) 247–251
217. Wei Zhang, Liu Ming and Poul Erik Hansen, Structure elucidation and biological effects of carrageenans from red algae. In Marine Biomaterials" (Isolation, Characterization and
Application) Ed. Se-Kwon Kim, CRC-Taylor & Francis. Chap. 5 p-61-78 (2013).
218. Phuong Tuyet Nguyen, Poul Erik Hansen, Torben Lund, The effect of 4-tert-butylpyridine and Li+ on the thermal degradation of TiO2 – bound ruthenium dye N719
Solar energy, 88 (2013) 23-30.
219. Mariusz Piertzak, Eugeniusz Grech , J.Nowicka-Scheibe and Poul Erik Hansen, Deuterium isotope effects on 13C chemical shifts of negatively charged NH..N systems
Magn.Reson.Chem. 51 (2013) 683-88.
220. Alexander Filarowski and Poul Erik Hansen
Secondary Isotope Effects on 13C and 15N Chemical Shifts of Schiff Bases revisited.
Z. Physical. Chem. 227 (2013) 917-927.
221. Huynh Ngoc Vingh, Tran Thi Thanh Nhan, Huynh Bhi Linh Chi, Nguyen Kim Phi Phung and Poul Erik Hansen, Structural studies of chemical constituents of Thithonia Tagetiflora Desv (Asteraceae).
Magn. Reson Chem. 51 (2013) 439-43.
222. Branka Mozetič Vodopivec, Jing Wang, Anne L. Møller, Jacob Krake, Torben Lund, Poul Erik Hansen, Søren Laurentius Nielsen, Differences in the structure of anthocyanins from two amphibious plants indicate different physiological roles of strucuturally different anthocyanins
Natural Products Research 27 (2013) 655-664
223. Poul Erik Hansen, Isotope effects on chemical shifts as a tool in the study of tautomeric
equilibria. In: Equilibria. Methods and theories. L.Antonov ed. Wiley-VCH. 2013
224. Poul Erik Hansen, Fadhil S. Kamounah and Daniel T. Gryko
Deuterium isotope effects on 13C chemical shifts of 10-Hydroxybenzo[h]quinolones
Molecules, 18 (2013) 4544-4560.
225. Mike P. Williamson, Andrea M Hounslow, Joe Ford, Kyle Fowler, Max Hebditch, and Poul Erik Hansen, Detection of salt bridges to lysines in barnase in solution
Chem. Commun. 49 (2013) 9824-26.
Alexander Filarowski and Poul Erik Hansen
Secondary Isotope Effects on 13C and 15N Chemical Shifts of Schiff Bases revisited.
Z. Physical. Chem. 227 (2013) 917-927.
Wei Zhang, Liu Ming and Poul Erik Hansen, Structure elucidation and biological effects of carrageenans from red algae. In Marine Biomaterials" (Isolation, Characterization and
Application) Ed. Se-Kwon Kim, CRC-Taylor & Francis. Chap. 5 p-61-78 (2013).
Mariusz Piertzak, Eugeniusz Grech , J.Nowicka-Scheibe and Poul Erik Hansen, Deuterium isotope effects on 13C chemical shifts of negatively charged NH..N systems
Magn.Reson.Chem.51 (2013) 683-88.
Phuong Tuyet Nguyen, Poul Erik Hansen, Torben Lund, The effect of 4-tert-butylpyridine and Li+ on the thermal degradation of TiO2 – bound ruthenium dye N719
Solar energy, 88 (2013) 23-30.
Poul Erik Hansen, Fadhil S. Kamounah and Daniel T. Gryko
Deuterium isotope effects on 13C chemical shifts of 10-Hydroxybenzo[h]quinolones
Molecules, 18 (2013) 4544-4560.
Mike P Williamson, Andrea M Hounslow, Joe Ford, Kyle Fowler, Max Hebditch, and Poul Erik Hansen, Detection of salt bridges to lysines in barnase in solution
Chem. Commun. 49 (2013) 9824-26.
Poul Erik Hansen, Isotope effects on chemical shifts as a tool in the study of tautomeric equilibria. In: Equilibria. Methods and theories. L.Antonov ed. Wiley-VCH. 2013
Poul Erik Hansen, Fadhil S. Kamounah, Diana Zhiryakova, Yana Manolova and Liudmil Antonov, 1,1´,1´´-(2,4,6-Trihydroxybenzene-1,3,5-triyl)triethanone non-tautomerism.
Tetrahdron Lett. 55 (2014) 354-357.
Jacek Waluk, Mariusz Pietrzak, Jacek Dobkowski, Alexandr Gorski,Sylwester Gawinkowski, Michael Kijak, Roman Luboradzki, Poul Erik Hansen, Arresting consecutive steps of a photochromic reaction: Studies of b-thioxoketones combining laser photolysis with NMR detection.
Chem.Phys.Phys.Chem. 16 (2014) 9128-9137
Phuong Hoang Tran, Poul Erik Hansen, Thuy Thanh Pham, Vy Thanh Huynh, Vy Hieu, Huynh, Thao Du Thi Tran, Thanh Van Huynh, Thach Ngoc Le. Microwave-Assisted Facile and Rapid Friedel-Crafts Benzoylation of Arenes Catalysed by Bismuth rifluoromethanesulfonate
Synthetic Communications 44 (2014) 2921-2929
Thi Hoai Thu Nguyen, Nguyen Kim Tuyen Pham, Khanitha Pudhom,
Poul Erik Hansen, Kim Phi Phung Nguyen, Structure elucidation of four new megastigmanes from Sonneratia ovata Backer (Sonneratiaceae)
Magn. Reson. Chem. 52 (2014) 795-802. DOI: 10.1002/mrc.4132
Poul Erik Hansen, Eugeny V. Borisov and John C. Lindon, Determination of the Tautomeric Equilibria of Pyridoyl Benzoyl beta-Diketones in the Liquid and Solid State through the use of Deuterium Isotope Effects on 1H and 13C NMR Chemical Shifts and Spin Coupling Constants
Spectrochim. Acta. 136 (2015) 107-112
Phuong Hoang Tran, Poul Erik Hansen , Hai Truong Nguyen, Thach Ngoc Le, Erbium trifluoromethanesulfonate-catalyzed Friedel–Crafts acylation using aromatic carboxylic acids as acylating agents under monomode-microwave irradiation.
Tetrahefron Lett. 56 (2015) 612-18.
Ming Liu , Jianjun Dong, Poul Erik Hansen, Lin Qiu, Hua Yin, Zhonghua Qian, Mei Yang, Xin Qi, Jing Li and Jinlai Miao
Pharmacological profile of Xanthohumol, a Prenylated Flavonoid from Hops (Humulus lupulus)
Molecules 20 (2015) 754-79.
Poul Erik Hansen, Isotope effects on chemical shift in the study of intramolecular hydrogen bonds.
Molecules 20 (2015) 2405-2424.
Poul Erik Hansen, John Mortensen and Fadhil S. Kamounah, The importance of correct tautomeric structures for biological molecules.
JSM Chem. 3 (2015) 1014-19
JSM Chem. 3 (2015) 1014-1019.
Phuong Hoang Tran,Vy Hieu Huynh, Poul Erik Hansen, Duy-Khiem Nguyen Chau,Thach Ngoc Le, Microwave-assisted intramolecular Friedel-Crafts acylation of carboxylic acids using metal trifales in triflate anionic liquids.
Asian J. Org. Chem. 4 (2015) 482-86.
Phuong Hoang Tran,Huy Manh Hoang, Duy-Khiem Nguyen Chau, Poul Erik Hansen,Thach Ngoc Le, Indium triflate in 1-isobutyl-3-methylimidazolium dihydrogenphosphate: efficient and green catalytic system for Friedel-Crafts acylation.
Tetrahedron Lett. 56 (2015) 2187-2192.
Y. Manolova, V. Kurteva and L. Antonov, H. Marciniak, S. Lochbrunner; A. Crochet, K.M. Fromm, F.S. Kamounah and P.E. Hansen. 4-Hydroxy-1-naphthaldehydes: proton transfer or deprotonation.
PhysChemChemPhys. 17 (2015) ,10238-49.
D.Ivanova, V.Deneva, D.Nedeltcheva, F.S.Kamounah, G.Gergov, P.E.Hansen, S.Kawauchi and L.Antonov. Tautomeric transformations of Piroxicam in solution: a combined experimental and theoretical study.
RSC Adv. 5 (2015) 31852-31860.
Henrik Berg Rasmussen, Ditte Bjerre, Kristian Linnet, Gesche Jürgens, Kim Dalhoff, Hreinn Stefansson, Thomas Hankemeier, Rima Kaddurah-Daouk, Olivier Taboureau, Søren Brunak, Tine Houmann, Pia Jeppesen, Anne Katrine Pagsberg, Kerstin Plessen, Jørgen Dyrborg, Peter Riis Hansen, Poul Erik Hansen, Tim Hughes, Thomas Werge, and the INDICES Consortium . Individualization of treatments with drugs metabolized by carboxylesterase 1 – combining genetics and metabolomics
Future Med. Pharmcogenomics 16 (2015) 649-665. DOI: 
Thi-Hoai-Thu Nguyen, Huu-Viet-Thong Pham, Nguyen-Kim-Tuyen Pham,
Ngo-Diem-Phuong Quach, Khanitha Pudhom, Poul Erik Hansen, Kim-Phi-Phung Nguyen, Chemical Constituents from Sonneratia ovata Backer and their in vitro Cytotoxicity and Acetylcholinesterase Inhibitory Activities
Bioorg. Med. Chem. Lett. 25 (2015) 2366–2371.
Phuong H. Tran, Hai N. Tran, Poul Erik Hansen, Thach N. Le, A simple, effective, green method for regioselective 3-acylation of unprotected indoles.
Molecules. 20(2015) 19605-19619
S. Hristova, G. Dobrikov, F. S. Kamounah, S. Kawauchi, P. E. Hansen, V. Deneva, D. Nedeltcheva, L. Antonov. 10-hydroxybenzo[h]quinoline: Switching between single and double-well proton transfer through structural modifications
RSC Adv. 5 (2015) 102495 - 102507.
Poul Erik Hansen. Methods to distinguish tautomeric cases from static ones
In Tautomerism: Ideas, Compounds, Applications. Ed. L. Antonov. Wiley-VCH (2016).
Phuong Hoang Tran, Hai Truong Nguyen, Poul Erik Hansen, Thach Ngoc Le. An efficient and green method for regio- and chemo-selective Friedel–Crafts acylations using a deep eutectic mixture ([CholineCl][ZnCl2]3).
RSC Adv. 6 (2016) 37031 – 37038.
Phuong Hoang Tran,Huy Quang Phung,Hai Ngoc Tran, Poul Erik Hansen, Thach Ngoc Le. Efficient Friedel-Crafts benzoylation of aniline derivatives with 4-fluorobenzoyl chloride using copper triflate in the synthesis of aminobenzophenones.
Synt. Comm. 46 (2016) 893-901.
Poul Erik Hansen and Jens Spanget-Larsen. Structural studies on Mannich bases of 2-Hydroxy-3,4,5,6-tetrachlorobenzene. An UV, IR, NMR and DFT study. A mini-review.
J.Mol.Struct. 1119 (2016) 235-239
.Huong Giang Thi Nguyen, Ngoc Vinh Nguyen, , Van Anh Vo,Fadhil s. Kamounah, Ole Vang, Poul Erik Hansen Synthesis and cytotoxicity of (+)-usnic acid derivatives in U87MG glioblastoma cells.
Nat.Prod.Chem.Res., 4 (2016) 216-223
Poul Erik Hansen, Torben Lund, Jacob Krake, Jens Spanget-Larsen and Søren Hvidt A Reinvestigation of the Ionic Liquid Diisopropylethylammonium formate by NMR and DFT Methods.
J.Phys.Chem. B.120 (2016)
11279-11286. http://dx.doi.org/10.1021/acs.jpcb.6b08561
Thuc Huy Duong, Bui Linh Chi Huynh, Van Kieu Nguyen, Thi Hoai Thu Nguyen, Aurélie Bernard-Sauvager,Solenn Ferron, Warinthorn Chavasiri, Poul Erik Hansen, Marylene Chollet-Krugler, Holger Thüs, Joel Boustie, and Kim Phi Phung Nguyen. Newerythitol derivatives from the lichen Roccella bellangeriana.
Phytochem. 137 (2017) 156-164..
Phuong Hoang Tran, Hai Truong Nguyen, Poul Erik Hansen, Thach Ngoc Le. Greener Friedel-Crafts Acylations using microwave-enhanced reactivity of bismuth triflate in the Friedel-Crafts benzoylation of aromatic compounds with benzoic anhydride
Chemistry Select. 2 (2017) 571-75. DOI: 10.1002/slct.201601681
Silvia Hristova, Fadhil S. Kamounah, Nevse Molla, Poul Erik Hansen, Daniela Nedeltcheva and Liudmil Antonov. The possible tautomerism of the rotary switch 2-(2-(2-Hydroxy-4-nitrophenyl)hydrazono)-1-phenylbutane-1,3dione
Dyes and Pigments. 144 (2017) 249-261.
Poul Erik Hansen and Jens Spanget-Larsen, NMR and IR investigations of strong intramolecular hydrogen bonds. Molecules, 22 (2017) 552.
Silvia Hristova, Silvia Angelova, Poul Erik Hansen and Liudmil Antonov. 4-Carboxyl-2,6-dinitrophenylazohydroxynaphthalenes tautomerism NMR re explained and other methods verified.
Dyes and Pigments, 142 (2017) 226-229.
Shashikumar Keshav Paknikar, Fadhil S.Kamounah , Poul Erik Hansen and Murzban Sorab Wadia, Multi-step molecular rearrangement of acetyl cedrene to the hydrocarbon follower: Involvement of cyclopropyl carbinyl cation- cyclopropyl carbinyl cation rearrangement as key step
Chem.Nat.Comp. 53 (2017) 661-664.
. Poul Erik Hansen. Tautomerism and Biological activity of beta-diketones, triketones,beta-ketoestera dnd beta-ketoamides, A mini review.
Polish Chem. News (Wiadomosci Chemiczne)
71 (2017) 427-446.
H. Marciniak, S. Hristova, V. Deneva, F.S. Kamounah,
P.E. Hansen, S. Lochbrunner and L. Antonov.
Dynamics of Excited State Proton Transfer in Nitro Substituted
10-Hydroxybenzo[h]quinolones
Phys.Chem.Chem.Phys. 19 (2017) 26621-26629
Bahjat A. Saeed, Rita S. Elias, Fadhil S. Kamounah and
Poul Erik Hansen
Magn.Reson.Chem. 56 (2018) 172-182.
S.
Hristova,
V.
Deneva,
M.
Pittelkow,
A.
Crochet,
F.
S.
Kamounah,
K.
M.
Fromm,
P.
E.
Hansen,
L.
Antonov. A Concept for stimulate proton transfer
in
1-(phenyldeazenyl)napthalens-2-ols.
Dyes and Pigments 156 (2018) 91-99.
Quang Ton That, Truong Van Nguyen
Thien, Huu Phuc Dang, Ngoc Le Hoan,
Loan Kieu Thi Vo, Minh Huu Duc Nguyen, Nhan Truong
Ngu, Thien S. Nguyen,
Poul Erik Hansen. Chemical
Constituents of Geum urbanum
L. Roots.
Nat.Prod.Res. 24 (1018) 1-6
Poul Erik Hansen, Andreas Koch and Erich Kleinpeter. Ring Current and Anisotropy Effects on OH Chemical Shifts
Tetrahedron Lett. 59 (2018) 22188-2292.
Huong Giang Thi Nguyen, Vinh Ngoc Nguyen, Fadhil S.
Kamounah and Poul Erik Hansen, Structure of a new Usnic acid derivative from
a deacylation reaction of in a Mannich reaction. NMR studies supported by
theoretical calculations of NMR parameters
Magn.
Reson. Chem.
56 (2018)
1094-1100.
ChemPhysChem. 20 (2019) 78-91.
Poul Erik Hansen, Aneta Jezierska, Jaroslaw Panek, and
Jens Spanget-Larsen, Theoretical
calculations are a strong tool in the investigation of strong intramolecular
hydrogen bonds. In
Molecular Spectroscopy. A
Quntum Chemical Approach. Eds.
Y.Ozaki, M. Wojcik and J. Popp.
2019. Wiley.
Seyedabdollah Seyedkatouli , Mohammad Vakili,
Sayyed Faramarz Tayyari , Poul Erik Hansen ,
Fadhil S. Kamounah.
Molecular structure, vibrational
analysis, and intramolecular hydrogen bond strength of
3-methyl-4-amino-3-penten-2-one. Molecular structure, vibrational
analysis, and intramolecular hydrogen bond strength (IHBs) of
3-methyl-4-amino-3-penten-2-one and the effect of N-methyl and N-phenyl
substitutions on the IHBs. An Experimental and Theoretical approach.
Silvia
Hristova, Fadhil S. Kamounah, Aurelien Crochet,
Poul Erik
Hansen, Katharina Fromm, , Daniela V. Nedeltcheva-Antonova,
Liudmil
Antonov. I
T.T. Le Nguyen, T.T. Pham, P.E. Hansen, P.K.P. Nguyen.
In vitro α-glucosidase
inhibitory activity of compounds isolated from mangrove Lumnitzera
littorea leaves
Science and
Technology Development Journal 22
(2019) 106-113.
P. E. Hansen, F. S. Kamounah, Bahjat A. Saeed,
M. J. MacLachlan
and J. Spanget-Larsen.
Intramolecular Hydrogen Bonds in Normal and Sterically
Compressed o-Hydroxy Aromatic
Aldehydes.
Isotope Effects on Chemical Shifts and
Hydrogen Bond Strength.
Molecules 24 (2019) 4533
Bull.Korean Chem. Soc. 41 (2020) 78-83.
Nat Prod Chem Res. (2019)7 366
Poul Erik Hansen, Bahjat A. Saeed, Rita S. Rutu and Teobald
Kupka.
One-bond 1J(15N,H) coupling constants at sp2
hybridized nitrogen of Schiff bases, enaminones and similar compounds. A
theoretical study.
Truong Van Nguyen Thien,
Thi Kieu Loan Vo, Phu Hoang
Dang, Vinh Huynh Ngoc, Thi Thuy Duong Ngo, Thi My-Nuong Nguyen, Poul
Erik Hansen* and Quang Ton Thata*.
Two new sesquiterpenes from the stems of
Miliusa velutina.
Nat. Product Res.
(2020)
Poul Erik Hansen, NMR of complex,
heterogenous
structures
exemplified by humic substances.
Encyclopedia, 2020, v2, Available online:
https://encyclopedia.pub/1495
Poul Erik Hansen, Salt
Bridges investigated by Nuclear Magnetic Resonance (NMR)
Encyclopedia, 2020, v2, Available online:
https://encyclopedia.pub/1720
Lisa Samuelsen, Poul Erik Hansen, and Ole
Vang, Derivatives
of usnic acid
cytostatic effect in Caco-2 cells.
Nat.
Product Res.
35 (2021) 4953-4959 doi.org/10.1080/14786419.2020.1756796
Poul Erik Hansen, Structural Studies of
b-diketones and its implications on Biological Effects
Pharmaceuticals
14 (2021) 1189.
Sarah L. V. Zahn, Ole Hammerich,
Poul Erik Hansen, Stephan P. A. Sauer.
The Best DFT Functional for the Prediction of 1H
and 13C Chemical Shifts of Protonated Alkylpyrroles
J. Comput. Chem.
(2021)
1–15.
Poul Erik
Hansen, A Spectroscopic Overview of Intramolecular NH…O,N,S Hydrogen
Bonds.
Molecules
26 (2021)
2409.
Vahidreza Darugar , Mohammad Vakili , Sayyed
Faramarz Tayyari ,
Fadhil S. Kamounah, Poul Erik
Hansen.
Molecular structure, intramolecular hydrogen bond strength, vibrational
assignment, and spectroscopic insight of 4-phenylamino-3-penten-2-one
and its derivatives; A theoretical and experimental study.
J.Mol. Liq.
334
(2021) 116035
Atanas Kurutos, Stephan P. A. Sauer, Fadhil S. Kamounah,
Poul Erik Hansen,
Azo-hydrazone derived molecular switches:
Synthesis and conformational investigation.
Magn.Reson.Chem.
59
(2021)
1116–1125.doi:
10.1002/mrc.5164
Henrik Berg Rasmussen, Kornelius
Zeth, Poul Erik Hansen, Olivier Ragnar
Thomsen, Gesche Jürgens, Peter Riis Hansen.
Cellular Uptake and Intracellular Phosphorylation of GS-441524:
Implications for Its Effectiveness against COVID-19
Viruses.
2021, 13, 1369.
https://doi.org/10.3390/v13071369
Prediction of NH stretching frequencies of Intramolecularly hydrogen
bonded systems.
Molecules 26
(2021) 7651. https://doi.org/10.3390/molecules26247651
284. Poul
Erik Hansen, NMR of natural products as potential drugs
Molecules 26 (2021)
3763. doi.org/10.3390/molecules26123763
285. Lars Carlsen, Poul Erik Hansen, Bahjat A. Saeed
and Rita S. Elias, Curcumin analogues for possible cancer treatment. A
QSAR study.
World Journal of
Biological and Pharmaceutical Research.
01
(2021) 001–016
Mariusz
Pietrzak, Joanna Buczyńska, Fritz Duus, Jacek Waluk
and Poul Erik Hansen. Photoinduced
and Ground State Conversions in a Cyclic
b-Thioxoketone
RSC Adv.
12 (2022), 681-689
Hoang Khang Le, Thanh Tung Phan, Thi My Nuong
Nguyen, Thanh Chung Nguyen,
Cong Luan Tran, Poul Erik Hansen
and Quang Ton
That,
A new
sesquiterpene lactone from the leaves of Panax vietnamensis Ha et
Grushv. (Vietnamese ginseng)
Nat.Product.Res.
37 (2023) 3580-3587.
doi.org/10.1080/14786419.2022.2094374
Poul Erik Hansen, Isotope
Effects on Chemical shifts of small molecules.
Molecules.
27
(2022) 2405. doi.org/10.3390/molecules27082405 and in
Hydrogen Bonds
Mirosław
Jabłoński,
Ed.
ISBN 978-3-0365-6770-9 (hardback); ISBN 978-3-0365-6771-6 (PDF)
Truong Van Nguyen Thien,
Thi Kieu Loan Vo, Phu Hoang
Dang, Vinh Huynh Ngoc, Thi Thuy Duong Ngo, Thi My-Nuong Nguyen, Poul
Erik Hansen and Quang Ton That.
Two new sesquiterpenes from
the stems of Miliusa velutina.
Nat. Product Res.
36
(2022)
553-559 DOI: 10.1080/14786419.2020.1789984
Mahmoud Bazrafshan,
Mohammad Vakili,
Sayyed FaramarzTayyari,
Fadhil S.Kamounah,Poul ErikHansen,
Mohammad RezaHousaindokht.
Vibrational spectra, conformation and molecular transport of
5-amino-2,2,6,6-tetramethyl-4-hepten-3-one.
J.Mol. Struct.
1272 (2023) 134178.
Mahmoud
Bazrafshan, Mohammad Vakili, Sayyed Faramarz Tayyari, Fadhil S.
Kamounah, Poul Erik Hansen, Ali Shiri.
Synthesis, molecular structure,
conformational, and intramolecular hydrogen bond strength of ethyl
3-amino-2-butenoate and its N-Me, N-Ph, and N-Benzyl
derivatives; an experimental and theoretical study.
J. Mol. Struct.
1274 (2023) 134479.
Hui Dong, Poul Erik Hansen,
Songtao Dong, Dimitrios Stagos, Xiukun Lin and Ming Liu, Marine natural
bromophenols: Sources, structures, main bioactivities and Toxicity in
Science and Engineering of Marine Phenolics, Elsevier 2023.
ISBN: 978-0-12-823589-8.
Poul Erik
Hansen, Isotope Effects in Hydrogen Bond Research.
In "Spectroscopy and
Computation of Hydrogen-Bonded Systems" Eds. M. J. Wojcik and Y. Ozaki.
Wiley, Weinheim, Gernmany. 2023.
ISBN: 978-3-527-34972-2.
Poul Erik Hansen, Vahidreza Darugar, Mohammad Vakilli,
and Fadhil S. Kamounah.
Tautomerism of Pyridinylbutane-1,3-diones.
An NMR and DFT study.
Magn.Reson.Chem. 61 (2023)1–7.
Poul Erik
Hansen. Tautomerism of b-Diketones and
b-Thioxoketones.
Encyclopedia.
3 (2023)182–201.
Poul Erik
Hansen and
Fadhil S. Kamounah, Multiple Intramolecular Hydrogen Bonding in
large Biomolecules. DFT
Calculations and Deuterium Isotope Effects on 13C chemical
shifts as a tool in structural studies.
Chemistry, 5, (2023)
1317–1328. https://doi.org/10.3390/chemistry5020089
Mohammad Vakili, Vahidreza Darugar, Fadhil S. Kamounah, Poul Erik Hansen
Mathias Hermann, Michael Pittelkow.
Tautomerism, crystal structure and intramolecular hydrogen bonding of
pyridinyl methyl
b-diketones in the liquid and
solid state. Using different theoretical and experimental methods.
J. Mol. Liquids.
383 (2023) 122074
.
.
For recent publications recent
Published abstracts:
1. J. H. Baldo, J. W. Shriver, P. E. Hansen and B. D. Sykes, NMR Studies of Myosin
S-1 ATPase.
Biophys. J., 21 (1978) A 141.
2. P. E. Hansen and E. Tüchsen, 13C Chemical Shifts and Deuterium Isotope Effects for Structure Determination of Proteins.
J. Cellul. Biochem. 13A (1989) 31.
3. C. Lauritzen, O. Skovgaard, E. Tüchsen and P. E. Hansen, N-Extension of BPTI. A Model for Folding and Long-range Interactions.
J. Cellul. Biochem., S156 (1991) 65.
4. P. E. Hansen, J. Abildgaard and Aa. E. Hansen, Structure Information from Charge Induced Chemical Shift Changes
J. Cellul. Biochem., 17C (1993) 306.
5.
K.K. Laali and P.E. Hansen, Can fluorine perturb the site(s) of lectrophilic attack in pyrene persistent fluoropyrenium ions- Generation and charge distribution probed by multinuclear NMR.
Abstr. Pap AM Chem. S. 200-7 orgn part 2 Mar 28 1993
6. P. E. Hansen, C. Lauritzen, S. Bjørn, L. C. Petersen, K. Norris and O. H. Olsen, Determination of Structural Changes in BPTI Mutants using 13C NMR Chemical Shifts.
J.Cellul. Biochem., 21B (1995) 72.
7. J. Abildgaard, P. E. Hansen and Aa. E. Hansen, Isotope Effects on 13C and 15N Chemical Shifts in Proteins from Electric Field Effects.
J.Cellul. Biochem., 21B (1995) 68.
8. Poul Erik Hansen, Structural Studies of a Series of Acetylated Polyphenols and Schiff Bases thereof all with Intramolecular Hydrogen Bonds using Deuterium Isotope Effects on 13C NMR Chemical Shifts, PCA methods, X-ray and Ab Initio Calcualtions.
Polyphenols Comm., 2004, 37-38.
9. Poul Erik Hansen, Huynh Hoa Thi Troung, Ngoc Son Chu Pham, Flavonoid content in Vietnamese Tea.
Polyphenols Comm., 2006, 403-404.
Other publications:
1. Poul Erik Hansen og Arne Berg, Blyfri benzin, et vigtigt skridt, men hvad med de carcinogene PAH'er?,
Dansk Kemi, (1985) 354-356.
2. Poul Erik Hansen, Observations and Reflections on Every-day Chemical Phenomena in Introductory Chemistry. Formation and use of a Common Minimal Base.
The Nordic Conference on Science and Technology Education: The challenge for the future (1985) 53-56.
3. Poul Erik Hansen og Kjeld Schaumburg, Fra NMR til MR, en spektroskopisk metode i udvikling.
Dansk Kemi, (1987) 76-82.
4. Niels-Erik Foldberg, Poul Erik Hansen og Jens Josephsen, Smertekemi.
Skrifter fra Institut for Biologi og Kemi, RUC, 5 (1987) 1-86.
5. P. E. Hansen og J. Josephsen, Simulering af stoffers membranpermeabilitet.
Dansk Kemi (1990) 177.
6. Poul Erik Hansen, Ibuprofen.
Skrifter fra Institut for Biologi og Kemi, RUC, 18
(1991) 1-11.
7. Y. A. Barnett, K. Eger, S. Eriksson, G. Folkers, P. E. Hansen, R. Hofbauer, D. Komitowsky, A. Milon and B. Munch-Petersen, Gene Technology-Based Antimetaboli te Design: The use of an in Vitro Protein Expression System to facilitate Antimetabolite Design for Virally-induced Human Diseases and Malignant Conditions.
Biotech. Adv. 12 (1994) 663-668.
8. Poul Erik Hansen, Isotopeffekter.
Dansk Kemi (1996) 13-17.
9. Poul Erik Hansen, Jens Peter Nielsen og Morten Langgård, Hvad er kemien bag østrogenlignende stoffer?
Dansk Kemi . 12 (1996) 34-35.
10. Dai Hue Ngan, Ho Thi Cam Hoai, Le Mai Huong, Poul Erik Hansen and Ole Vang, Bioactivities and chemical constituens of a Vietnamse medicinal plant Che Vang Jasminum subtriplinerve Blume.
International Workshop on Herbal Medicinal Plants and Traditional Herb Remedies. Hanoi, Vietnam 20-21 September 2007.
11. Hansen, Poul Erik (2010, October 4). Deuterium Isotope Effects on Chemical Shifts. SciTopics. http://www.scitopics.com/Deuterium_Isotope_Effects_on_Chemical_Shifts.html
12. Ha, L.D., Nguyen, L.H.D., Pham, H.D., Hansen, P.E. and Duus, F. Isolation and Determination of Phenolics from the Bark of Callophyllum calaba L. var. bracteatum (Wight) Stevens.
J. Med. Materials (Hanoi), 13, (2008) 223-226.
13. Nguyen, H.T., Hansen, P.E., Duus, F., Heilmann, G., Pham, H.D. and Nguyen, L.H.D. Isolation and Preparation of Cytotoxic Chromanone Acids from the Bark of Callophyllum dongnaiense.
J. Chem. (Vietnam), 47 (2009) 347-351(2009).
14. Poul Erik Hansen og Torben Lund,