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A novel approach to the synthesis of conjugated carbazole trimers as multifunctional chromophores for photorefractive materials

✍ Scribed by Yadong Zhang; Tatsuo Wada; Liming Wang; Hiroyuki Sasabe

Book ID
104256542
Publisher
Elsevier Science
Year
1997
Tongue
French
Weight
229 KB
Volume
38
Category
Article
ISSN
0040-4039

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✦ Synopsis

A new series of amorphous conjugated carbazole trimers have been synthesized for photorefractive applications. It was found that these trimers possess large photorefractive optical net gain and high photorefractive diffraction efficiency.

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## Abstract Disymmetrically substituted oligo(phenyleneethynediyl) (OPE) derivatives were prepared from 2,5‐bis(octyloxy)‐4‐[(triisopropylsilyl)ethynyl]benzaldehyde (5) by an iterative approach using the following reaction sequence: __i__) __Corey–Fuchs__ dibromoolefination, __ii__) treatment with