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Liquid‐Crystalline Perylene Derivatives as “Discotic Pigments”
Author(s) -
Göltner Christine,
Pressner Dietmar,
Müllen Klaus,
Spiess Hans Wolfgang
Publication year - 1993
Publication title -
angewandte chemie international edition in english
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 0570-0833
DOI - 10.1002/anie.199316601
Subject(s) - mesogen , perylene , mesophase , pigment , discotic liquid crystal , alkyl , chemistry , liquid crystalline , photochemistry , organic chemistry , materials science , molecule , phase (matter)
The red‐violet, liquid‐crystalline dye 1 , which shows an extraordinarily broad mesophase, is obtained by twofold [2 + 4] cycloaddition of 3,5‐dioxotriazoles to alkyl‐substituted perylenes. These soluble compounds allow the use of a perylene pigment as a mesogen for the first time. R = n ‐C x H x + 1 ( x = 5, 12, 18); R′ = Ph, n ‐C x H x + 1 ( x = 5, 11, 17, 21).
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