首页   按字顺浏览 期刊浏览 卷期浏览 Reversals in Bulk Chirality in a Chiral Nematic Amphiphilic Liquid Crystal Associated w...
Reversals in Bulk Chirality in a Chiral Nematic Amphiphilic Liquid Crystal Associated with Acylated Proline and Thiaproline

 

作者: Keith Radley,   GarethJ. Lilly,   PreyasR. Patel,   HardarshanK. Cheema,   ZuridahM. Rais,  

 

期刊: Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals  (Taylor Available online 1995)
卷期: Volume 268, issue 1  

页码: 107-119

 

ISSN:1058-725X

 

年代: 1995

 

DOI:10.1080/10587259508030999

 

出版商: Taylor & Francis Group

 

数据来源: Taylor

 

摘要:

Chiral detergents derived from the acylation of naturally occuring amino acids have been synthesised. These detergents have been used as chiral dopants with the achiral host potassium laurate (KDD). A correspondence has been found between the molecular stereochemistry in the micelle surface and the resulting bulk chirality. The chiral dopants potassium hexadecanoyl-L-proline (L-KHDP) and potassium hexadecanoyl-L-thiaproline (L-KHDTP) with the host achiral KDD were found to cause inversions in the sense of the twist, abnormal to the general case. These inversions in sense of twist were interpreted as originating from the compensation averaging of the cis-trans molecular conformations, derived from the rotation of the consituents about the C-N peptide bond. NMR evidence is presented to support this assertion.

 

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