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Issue 11, 2011
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Realization of a lateral directional order in nematic and smectic A phases of rodlike molecules by using perfluoroarene–arene interactions

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Abstract

In order to realize biaxial mesophases of straight rod-like molecules by introduction of lateral perfluoroarene–arene interactions, non-alkylated rod-like liquid crystalline compounds C6X5–COO–C6Z4–C6Z4–OOC–C6Y5, F-BB-F (X = Y = F, Z = H), F-BB-B (X = F, Y = Z = H), B-BB-B (X = Y = Z = H), B-FF-B (X = Y = H, Z = F), F-FF-B (X = F, Y =H, Z = F), and F-FF-F (X = Y = Z = F) were prepared, and their phase transition behaviors were investigated by polarized light optical microscopy (POM) and differential scanning calorimetery (DSC). From the one- and two-dimensional X-ray diffraction (1D- and 2D-XRD) studies of the nematic and smectic A phases of F-BB-F, it was clarified that the smectic A phase had a lateral directional order in the layer and the nematic phase had a cybotactic smectic A structure.

Graphical abstract: Realization of a lateral directional order in nematic and smectic A phases of rodlike molecules by using perfluoroarene–arene interactions

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Article information


Submitted
09 Dec 2010
Accepted
22 Mar 2011
First published
20 Apr 2011

Soft Matter, 2011,7, 5176-5187
Article type
Paper

Realization of a lateral directional order in nematic and smectic A phases of rodlike molecules by using perfluoroarene–arene interactions

K. Kishikawa, S. Aikyo, S. Akiyama, T. Inoue, M. Takahashi, S. Yagai, H. Aonuma and S. Kohmoto, Soft Matter, 2011, 7, 5176
DOI: 10.1039/C0SM01459A

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