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Proceedings Paper

Diamantane: a thread stitching up photochromism and liquid crystals
Author(s): Tsuyoshi Gushiken; Masahiro Kawasaki; Toshiya Sagisaka; Takashi Ubukata; Yasushi Yokoyama
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Paper Abstract

Diamantane, one of the diamondoid family molecules, was introduced to thermally reversible photochromic heliofulgides. They exhibited good thermally reversible photochromism. A chiral photochromic indolylfulgide derivative was used to control the pitch length of cholesteric liquid crystalline state by photoirradiation. However, as the indolylfulgide derivative has absorption in the visible light region, it is not a suitable agent to control the selective reflection wavelength. Chiral benzofurylfulgide derivative, possessing shorter absorption maximum wavelength, was employed for this purpose. Diamantane has a long barrel-like C3-symmetric structure with the corresponding symmetric axis. Several derivatives, with long alkyl or related substituents on the carbon atoms at both ends of the molecule, showed liquid crystalline properties. Thus, diamantane worked as a thread stitching up photochromism and liquid crystals.

Paper Details

Date Published: 27 August 2008
PDF: 11 pages
Proc. SPIE 7050, Liquid Crystals XII, 70500B (27 August 2008); doi: 10.1117/12.793953
Show Author Affiliations
Tsuyoshi Gushiken, Yokohama National Univ. (Japan)
Masahiro Kawasaki, Yokohama National Univ. (Japan)
Toshiya Sagisaka, Yokohama National Univ. (Japan)
Takashi Ubukata, Yokohama National Univ. (Japan)
Yasushi Yokoyama, Yokohama National Univ. (Japan)

Published in SPIE Proceedings Vol. 7050:
Liquid Crystals XII
Iam Choon Khoo, Editor(s)

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