Issue 23, 2004
From the journal:

Journal of Materials Chemistry

Liquid crystalline amides: linear arrangement of rod-like molecules by lateral intermolecular hydrogen bonding and molecular shape effect†

Takashi Kajitani,a   Shigeo Kohmoto,b   Makoto Yamamotob  and  Keiki Kishikawa*b  

* Corresponding authors

a Quality Materials Science, Graduate School of Science and Technology, Chiba University, 1-33 Yayoi-cho, Inage-ku, Japan
E-mail: t.kaji@graduate.chiba-u.jp

b Department of Applied Chemistry and Biotechnology, Faculty of Engineering, Chiba University, 1-33 Yayoi-cho, Inage-ku, Japan
E-mail: kishikawa@faculty.chiba-u.jp

Abstract

Bent- and straight-rod shaped liquid crystalline amides 1–3 were designed and synthesized, and their thermodynamic behaviors were investigated by polarized optical microscopy and differential scanning calorimetry, and their layer distances were measured by X-ray diffraction. Weak or strong hydrogen bonds were observed in variable-temperature FT-IR spectra for bent-rod shaped compounds 1 possessing a long alkoxy chain (OR2), straight-rod shaped compounds 2, and straight-rod shaped 3 in their smectic C, smectic Cx, and smectic A phases, respectively. Thus, these liquid crystalline amides could generate linear molecular aggregates in their smectic layers by the lateral intermolecular hydrogen bonds.

Graphical abstract: Liquid crystalline amides: linear arrangement of rod-like molecules by lateral intermolecular hydrogen bonding and molecular shape effect

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Article information

DOI
https://doi.org/10.1039/B408672D
Article type
Paper
Submitted
08 Jun 2004
Accepted
23 Aug 2004
First published
27 Sep 2004

J. Mater. Chem., 2004,14, 3449-3456

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Liquid crystalline amides: linear arrangement of rod-like molecules by lateral intermolecular hydrogen bonding and molecular shape effect

T. Kajitani, S. Kohmoto, M. Yamamoto and K. Kishikawa, J. Mater. Chem., 2004, 14, 3449 DOI: 10.1039/B408672D

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