Study of molecular dynamics in liquid-crystalline phases of CBOOA by high-resolution 13C NMR

被引：0

作者：

Hagiwara, Shoko ^{[1
]}

Iwama, Yoko ^{[1
]}

Fujimori, Hiroki ^{[1
]}

机构：

[1] Nihon Univ, Grad Sch Integrated Basci Sci, Setagaya Ku, Tokyo 1568550, Japan

来源：

COMPLEX SYSTEMS-BOOK 1 | 2008年 / 982卷

关键词：

CBOOA; liquid crystal; NMR; phase transition;

D O I：

暂无

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

High-resolution C-13 NMR experiments were performed in smectic Ad (SAd), nematic (N), and isotropic- liquid (1) phases of a liquid crystal, 4-octyloxy-N-(4-cyanobenzylidene)aniline (CBOOA). The temperature dependency of the spin-lattice relaxation times varied smoothly in the liquid-crystalline phases for almost all of the carbon atoms. However, for the carbon atom in the cyano-end group, a sharp change was detected at the SAd-N transition temperature. It is suggested that intermolecular interaction, which is not observed in the N phase, occurs in the SAd phase around the cyano-end group.

引用

页码：725 / 727

页数：3

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