From the synclinic to the anticlinic smectic phases: A deuterium NMR and diffusion NMR study

被引：21

作者：

Cifelli, M ^{[1
]}

Domenici, V ^{[1
]}

Veracini, CA ^{[1
]}

机构：

[1] Univ Pisa, Dipartimento Chim & Chim Ind, I-56126 Pisa, Italy

来源：

MOLECULAR CRYSTALS AND LIQUID CRYSTALS | 2005年 / 429卷

关键词：

diffusion; dynamics; H-2; NMR; liquid crystals; line-width;

D O I：

10.1080/15421400590930908

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The behaviour of the H-2 NMR line-width throughout the whole mesophasic range of the ferroelectric liquid crystal "1-methylheptyl 4'-(4"-n-decyloxybenzoyloxy) biphenyl-4-carboxylate" (10B1M7) is here reported and discussed. Static Fringe Field NMR Diffusometry measurements from the isotropic to the anticlinic phase have been performed leading to a significant result concerning the tumbling diffusional coefficient (D-perpendicular to). These results have been compared to X-Ray measurements and H-2 NMR linewidths in order to explain the peculiar behaviour occurring at the transition. between the ferroelectric (FLC) and the antiferroelectric (AFLC) liquid crystalline phases.

引用

页码：167 / 179

页数：13

共 22 条

[1] 2 DIGITAL X-RAY-IMAGING SYSTEMS FOR APPLICATIONS IN X-RAY-DIFFRACTION [J].