Polymorphism of 1,2-bis(2-methyl-5-p-methoxyphenyl-3-thienyl)perfluorocyclopentene and photochromic reactivity of the single crystals

Chemistry - A European Journal

Volumn 9, Issue 3, 2003, Pages 621-627

  Morimoto, Masakazu ^a   Kobatake, Seiya ^a   Irie, Masahiro ^a  

^a KYUSHU UNIVERSITY   (Japan)

Author keywords

Diarylethene; Photochromism; Polymorphism; Quantum yield; Single crystal

Indexed keywords

CONFORMATIONS; CRYSTALLIZATION; IRRADIATION; ULTRAVIOLET RADIATION;

PHOTOCHROMATIC REACTIONS;

SINGLE CRYSTALS;

CYCLOPENTENE DERIVATIVE; HEXANE;

ARTICLE; CONFORMATION; CRYSTAL; CRYSTALLIZATION; CYCLIZATION; ISOMER; LIGHT; PHOTOCHEMISTRY; QUANTUM YIELD; ULTRAVIOLET IRRADIATION;

EID: 0037415933     PISSN: 09476539     EISSN: None     Source Type: Journal    
DOI: 10.1002/chem.200390066     Document Type: Article

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42. The structure of the photogenerated closed-ring isomer in the crystal of 1,2-bis(2,5-dimethyl-3-thienyl)perfluorocyclopentene was employed for the central part consisting of the thiophene and the perfluorocyclopentene rings. From the X-ray crystallographic data, the thiophene rings rotate by 22.2° during the photocyclization reaction.
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