Conformational properties of alkyloxy end chains in NOCB liquid crystals

被引：1

作者：

Emsley, J. W. ^{[1
]}

机构：

[1] Univ Southampton, Sch Chem, Southampton, Hants, England

来源：

LIQUID CRYSTALS | 2019年 / 46卷 / 06期

关键词：

Nematic; 2D PELF NMR; conformation; orientational order; ORIENTATIONAL ORDER; PRETRANSITIONAL REGION; DIPOLAR COUPLINGS; MOLECULES; ANISOLE; PHASE;

D O I：

10.1080/02678292.2018.1533596

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A proton-encoded local field 2D NMR spectrum of 4 '-pentyloxy-4-biphenylcarbonylnitrile (5OCB) was published in 2003 (Liquid Crystals, 2003; 30: 611-615) but not completely assigned, nor analysed to yield information on the structure, orientational order and conformational distribution of the molecules in the nematic phase. This spectrum is fully assigned and analysed here to yield 34 residual dipolar coupling constants at a single temperature which are used to characterise the distribution of conformers in the pentyloxy chain. [GRAPHICS] .

引用

页码：857 / 871

页数：15

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