Photocyclization of diphenylmaleonitrile in the crystalline state.
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概要
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Diphenylmaleonitrile shows polymorphism. The crystals are photochromic and afford 9,10-dicyanophenanthrene and 9,10-dihydro-9,10-dicyanophenanthrene after prolonged irradiation. The rates of photodecomposition and properties such as photochromism, absorption and fluorescence spectra depend upon the crystal form. Photochromism results from the formation of the 4a,4b-dihydrophenanthrene which is successively converted into the photoproducts.
- 公益社団法人 日本化学会の論文
著者
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Ichimura Kunihiro
Research Center For Materials With Integrated Properties Toho University
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Ichimura Kunihiro
Research Institure for Polymers and Textiles
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Watanabe Shoji
Research Institure for Polymers and Textiles
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