硫代烷基封端偶氮介晶元同系物的介晶性质

Mesomorphic properties of an homologous series of thioalkyl-terminated azomesogens.

作者信息

Al-Hamdani Uhood J

机构信息

Department of Chemistry, College of Education, Basrah University, P.O. Box 716, Basrah, Iraq; E-Mail:

出版信息

Int J Mol Sci. 2011;12(5):3182-90. doi: 10.3390/ijms12053182. Epub 2011 May 16.

DOI:10.3390/ijms12053182

PMID:21686178

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC3116184/

Abstract

A new homologous series (ten compounds) of 2-hydroxy azo compounds SR(n) (where n:1-10) were synthesized. Their structures were elucidated using spectroscopic techniques such as IR (Infrared), (1)H-NMR as well as elemental analysis. Mesomorphic properties and phase transitions were studied using polarized hot stage optical microscopy and differential scanning calorimetry (DSC), and are discussed as a function of the number of carbon atoms in the thioalkyl chain. It has been found that all compounds in the series are pure nematogens.

摘要

合成了一个新的2-羟基偶氮化合物SR(n)（其中n：1-10）的同系物系列（十种化合物）。使用红外光谱（IR）、氢核磁共振（¹H-NMR）等光谱技术以及元素分析对其结构进行了阐明。利用偏光热台光学显微镜和差示扫描量热法（DSC）研究了介晶性质和相变，并作为硫代烷基链中碳原子数的函数进行了讨论。已发现该系列中的所有化合物均为纯向列相液晶。