How different are diastereomorphous orientations of enantiomers in the liquid crystalline phases of PBLG and PBDG: a case study
✍ Scribed by Andreas Marx; Volker Schmidts; Christina M. Thiele
- Publisher
- John Wiley and Sons
- Year
- 2009
- Tongue
- English
- Weight
- 183 KB
- Volume
- 47
- Category
- Article
- ISSN
- 0749-1581
- DOI
- 10.1002/mrc.2454
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✦ Synopsis
Abstract
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.