VIBRATIONAL SPECTRA OF LIQUID CRYSTALS .I. CHANGES IN INFRARED SPECTRUM AT CRYSTAL-NEMATIC TRANSITION

被引：42

作者：

BULKIN, BJ

GRUNBAUM, D

SANTORO, AV

机构：

[1] Hunter College, City University of New York, New York

来源：

JOURNAL OF CHEMICAL PHYSICS | 1969年 / 51卷 / 04期

关键词：

D O I：

10.1063/1.1672218

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The infrared spectra of 4,4′-bis(alkoxy)azoxybenzenes (methyl, ethyl, butyl, pentyl, and hexyl) have been examined as a function of temperature through the crystal-nematic transition. Several bands are observed to disappear gradually as this transition is approached. The nature of these vibrational modes and the relative rates of their disappearance are discussed in terms of a lattice defect model of the crystalnematic transition. Preliminary results for the crystal-smectic transition in 4,4′bis(heptyloxy) azoxybenzene are also reported.

引用

页码：1602 / &

共 12 条

[1]

[Anonymous], 1934, PROC MATH PHYS ENG S, DOI DOI 10.1098/RSPA.1934.0132

[2]

ARNOLD H, 1967, LIQUID CRYSTALS, P323

[3] Crystalline phases of some substances studied as liquid crystals. [J].