Organic Letters 2007-Sep

Synthesis and solid-state photochromism of 1,3-diphenyl-4- (2-chlorobenzal)-5-hydroxypyrazole 4-methylthiosemicarbazone.

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Ingia / Ingia

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Jixi Guo

Lang Liu

Guangfei Liu

Dianzeng Jia

Xiaolin Xie

KIFUNGU: 17764189

DOI: 10.1021/ol7016005

BioSeek: 17764189

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Kikemikali

A new photochromic compound containing a pyrazole-ring unit, 1,3-diphenyl-4-(2-chlorobenzal)-5-hydroxypyrazole 4-methylthiosemicarbazone, was synthesized. Its structure, photochromic properties, and photochemical kinetics were characterized. The results show that the title compound exhibits reversible enol-keto photoisomerization, excellent photostability, and high fatigue resistance. An intra- and intermolecular proton-transfer mechanism is proposed.

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Herbal & Natural Medicine

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