'Gelander' helical molecules

Angewandte Chemie - International Edition

Volumn 37, Issue 21, 1998, Pages 3031-3034

  Kiupel, Bernd ^a   Niederalt, Christoph ^a   Nieger, Martin ^a   Grimme, Stefan ^a   Vögtle, Fritz ^a  

^a UNIVERSITY OF BONN   (Germany)

Author keywords

Chirality; Circular dichroism; Enantiomeric resolution; Helical structures; Terphenyls

Indexed keywords

TERPHENYL DERIVATIVE;

ARTICLE; CHIRALITY; CIRCULAR DICHROISM; ENANTIOMER; HIGH PERFORMANCE LIQUID CHROMATOGRAPHY; ROTATION;

EID: 0032538784     PISSN: 14337851     EISSN: None     Source Type: Journal    
DOI: 10.1002/(SICI)1521-3773(19981116)37:21<3031::AID-ANIE3031>3.0.CO;2-K     Document Type: Article

References (38)

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18. It is possible to arrange the chirality of closely related structures and to say "more" and "less" chiral with regard to the molecular structures as well as to the chiroptical properties. Further details: a) "An Epistemological Note on Chirality": K. Mislow, P. Bickart, Isr. J. Chem. 1976/1977, 15, 1-6; b) A.B. Buda, T. Auf der - Heyde, K. Mislow, Angew. Chem. 1992, 104, 1012-1031; Angew. Chem. Int. Ed. Engl. 1992, 31, 989-1031; for a new method for the quantifcation of the chirality of molecules, see S. Grimme, Chem. Phys. Lett., in press.
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32. d(S) = 0.55) were employed. In this case (and in usual) this method - containing only global empirical parameters, which are not adjusted to specific molecular systems - leads to errors in the excitation energies below 0.3 eV. A portion of the deviations from the experimental spectrum can possibly be explained by solvent effects. a) R. Ahlrichs, M. Bär, M. Häser, H. Horn, C. Kölmel, Chem. Phys. Lett. 1989, 162, 165-169; b) A. Schäfer, H. Horn, R. Ahlrichs, J. Chem. Phys. 1992, 97, 2571-2577; c) S. Grimme, Chem. Phys. Lett. 1996, 259, 128-137; d) S. Grimme, Habilitationsschrift, Universität Bonn, 1996; e) T. H. Dunning, V. McKoy, J. Chem. Phys. 1967, 47, 1735-1747; f) A. D. Becke, J. Chem. Phys. 1993, 98, 5648-5652.
33. d(S) = 0.55) were employed. In this case (and in usual) this method - containing only global empirical parameters, which are not adjusted to specific molecular systems - leads to errors in the excitation energies below 0.3 eV. A portion of the deviations from the experimental spectrum can possibly be explained by solvent effects. a) R. Ahlrichs, M. Bär, M. Häser, H. Horn, C. Kölmel, Chem. Phys. Lett. 1989, 162, 165-169; b) A. Schäfer, H. Horn, R. Ahlrichs, J. Chem. Phys. 1992, 97, 2571-2577; c) S. Grimme, Chem. Phys. Lett. 1996, 259, 128-137; d) S. Grimme, Habilitationsschrift, Universität Bonn, 1996; e) T. H. Dunning, V. McKoy, J. Chem. Phys. 1967, 47, 1735-1747; f) A. D. Becke, J. Chem. Phys. 1993, 98, 5648-5652.
34. d(S) = 0.55) were employed. In this case (and in usual) this method - containing only global empirical parameters, which are not adjusted to specific molecular systems - leads to errors in the excitation energies below 0.3 eV. A portion of the deviations from the experimental spectrum can possibly be explained by solvent effects. a) R. Ahlrichs, M. Bär, M. Häser, H. Horn, C. Kölmel, Chem. Phys. Lett. 1989, 162, 165-169; b) A. Schäfer, H. Horn, R. Ahlrichs, J. Chem. Phys. 1992, 97, 2571-2577; c) S. Grimme, Chem. Phys. Lett. 1996, 259, 128-137; d) S. Grimme, Habilitationsschrift, Universität Bonn, 1996; e) T. H. Dunning, V. McKoy, J. Chem. Phys. 1967, 47, 1735-1747; f) A. D. Becke, J. Chem. Phys. 1993, 98, 5648-5652.
35. d(S) = 0.55) were employed. In this case (and in usual) this method - containing only global empirical parameters, which are not adjusted to specific molecular systems - leads to errors in the excitation energies below 0.3 eV. A portion of the deviations from the experimental spectrum can possibly be explained by solvent effects. a) R. Ahlrichs, M. Bär, M. Häser, H. Horn, C. Kölmel, Chem. Phys. Lett. 1989, 162, 165-169; b) A. Schäfer, H. Horn, R. Ahlrichs, J. Chem. Phys. 1992, 97, 2571-2577; c) S. Grimme, Chem. Phys. Lett. 1996, 259, 128-137; d) S. Grimme, Habilitationsschrift, Universität Bonn, 1996; e) T. H. Dunning, V. McKoy, J. Chem. Phys. 1967, 47, 1735-1747; f) A. D. Becke, J. Chem. Phys. 1993, 98, 5648-5652.
36. d(S) = 0.55) were employed. In this case (and in usual) this method - containing only global empirical parameters, which are not adjusted to specific molecular systems - leads to errors in the excitation energies below 0.3 eV. A portion of the deviations from the experimental spectrum can possibly be explained by solvent effects. a) R. Ahlrichs, M. Bär, M. Häser, H. Horn, C. Kölmel, Chem. Phys. Lett. 1989, 162, 165-169; b) A. Schäfer, H. Horn, R. Ahlrichs, J. Chem. Phys. 1992, 97, 2571-2577; c) S. Grimme, Chem. Phys. Lett. 1996, 259, 128-137; d) S. Grimme, Habilitationsschrift, Universität Bonn, 1996; e) T. H. Dunning, V. McKoy, J. Chem. Phys. 1967, 47, 1735-1747; f) A. D. Becke, J. Chem. Phys. 1993, 98, 5648-5652.
37. d(S) = 0.55) were employed. In this case (and in usual) this method - containing only global empirical parameters, which are not adjusted to specific molecular systems - leads to errors in the excitation energies below 0.3 eV. A portion of the deviations from the experimental spectrum can possibly be explained by solvent effects. a) R. Ahlrichs, M. Bär, M. Häser, H. Horn, C. Kölmel, Chem. Phys. Lett. 1989, 162, 165-169; b) A. Schäfer, H. Horn, R. Ahlrichs, J. Chem. Phys. 1992, 97, 2571-2577; c) S. Grimme, Chem. Phys. Lett. 1996, 259, 128-137; d) S. Grimme, Habilitationsschrift, Universität Bonn, 1996; e) T. H. Dunning, V. McKoy, J. Chem. Phys. 1967, 47, 1735-1747; f) A. D. Becke, J. Chem. Phys. 1993, 98, 5648-5652.
38. We have already synthesized from 14 the tetrakis(diphenylphosphanyl oxide) compound, which can be reduced to tetraphosphane.