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How different are diastereomorphous orientations of enantiomers in the liquid crystalline phases of PBLG and PBDG: a case study
Author(s) -
Marx Andreas,
Schmidts Volker,
Thiele Christina M.
Publication year - 2009
Publication title -
magnetic resonance in chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.483
H-Index - 72
eISSN - 1097-458X
pISSN - 0749-1581
DOI - 10.1002/mrc.2454
Subject(s) - chemistry , enantiomer , dipole , crystallography , phase (matter) , residual , liquid crystal , residual dipolar coupling , stereochemistry , organic chemistry , condensed matter physics , physics , algorithm , computer science
The orientational properties of the two enantiomers of an example compound, namely isopinocampheol [(+)‐ and (−)‐IPC] in the two enantiomers of a liquid crystalline phase, namely Poly‐γ‐benzyl‐L/D‐glutamate (PBLG/PBDG) with the organic cosolvent CDCl 3 , were investigated. The interactions can be either enantiomorphous, leading to equal orientations and residual dipolar couplings (RDCs), or diastereomorphous, leading to different orientations and RDCs. The difference between the two diastereomorphous orientations was determined to be rather small (5° in the Euler angle β). Furthermore, we investigated whether one of the two diastereomorphous interactions is favored. Copyright © 2009 John Wiley & Sons, Ltd.