Proceedings of Japanese Liquid Crystal Society Annual meeting
Online ISSN : 2432-5988
Print ISSN : 1880-3490
ISSN-L : 1880-3490
2000 Japanese Liquid Crystal Conference
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Two Types of Cubic Phases of 4'-n-Alkoxy-3'-nitrobiphenyl-4-carboxylic Acids
Tatsuya Ichikawa*Koushi MoritaShinichi YanoShoichi KutsumizuShuichi Nojima
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Pages 1-2

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Abstract
The structures of cubic phases of 4'-n-alkoxy-3'-nitrobiphenyl-4-carboxylic acids (ANBC-n, where n is the number of carbon atoms in the alkoxy group) have been studied by X-ray diffraction technique. It was found that the cubic region of ANBC-n contains two types of cubic phases, Cub I with Im3m symmetry and Cub II with Ia3d. Very surprisingly, the phase type of cubic phases of ANBC-19, -20, and -21 is of Im3m type in the whole temperture region of each, and thus, the region of Ia3d type is divided into two, n=15-18 and n≧22.
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© 2000 Japanese Liquid Crystal Society
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