The allomorphism of a photochromic diarylethene |
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| Authors: | Shou-Zhi PuFu-Shi Zhang Fan SunRu-Ji Wang Xin-Hong ZhouShek-Kiu Chan |
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| Institution: | a Department of Chemistry, Tsinghua University, Beijing 100084, China
b Faculty of Science and Technology, University of Macau, Macau 3001, China |
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| Abstract: | The photochromic diarylethene, 1,2-bis(2-methyl-5-(2,2′-dicyanovinyl)-thien-3-yl)perfluorocyclopentene (1a), was synthesized by a novel method. Two kinds of single crystals of the compound were obtained depending on the different recrystallization conditions and their structures were determined by X-ray crystallographic analysis. Allomorphism of the photochromic diarylethene was discovered. The compound underwent a photochromic reaction both in solution and in the single crystalline phase of the anti-parallel conformer. |
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| Keywords: | diarylethene photochromic allomorphism X-ray crystallographic analysis |
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