Mesomorphic studies of novel azomesogens having a benzothiazole core: Synthesis and characterisation

被引：13

作者：

Thaker, B. T. ^{[1
]}

Patel, B. S. ^{[1
]}

Dhimmar, Y. T. ^{[1
]}

Chothani, N. J. ^{[1
]}

Solanki, D. B. ^{[1
]}

Patel, Neeraj ^{[1
]}

Patel, K. B. ^{[1
]}

Makawana, U. ^{[1
]}

机构：

[1] Veer Narmad South Gujarat Univ, Dept Chem, Surat, Gujarat, India

来源：

LIQUID CRYSTALS | 2013年 / 40卷 / 02期

关键词：

6-fluorobenzothiazole; azomesogens; SmA; nematic; enantiotropic; LIQUID-CRYSTALLINE PROPERTIES; DERIVATIVES; TRANSPORT; SUBSTITUTION; PYRIDINE; BEHAVIOR;

D O I：

10.1080/02678292.2012.737478

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Novel liquid crystals, including 2-[4-(4-n-alkoxybenzoyloxy)phenylazo]-6-fluorobenzothiazoles (Series E) and 2-[4-(4-n-alkoxybenzoyloxy)naphtha-1-ylazo]-6-fluorobenzothiazoles (Series F), have been synthesised and characterised. Each series contains 13 homologous members differing by the length of the alkoxy chain. In series E the derivative with C-1 to C-7 chain length were found to exhibit enantiotropic smectic C (SmC) and nematic (N) mesophases. The C-8 homologue possessed enantiotropic SmC, smectic A (SmA) and N mesophases, while the longer chain homologues (C-10 to C-14) showed enantiotropic SmC and SmA mesophases. The C-16 and C-18 homologues possessed only SmA mesophases. In Series F all the compounds (C-1 to C-18) exhibited only the enantiotropic nematic mesophase.

引用

页码：237 / 248

页数：12

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