Photochromic Mechanism of Heterofused Benzopyran Derivatives

Autor:	Meigong Fan, Wenfeng Wang, Jingqiang Wei, Ping Fan, Aiping Zhu, Yangfu Ming, Side Yao
Rok vydání:	2000
Předmět:	Photochromism chemistry.chemical_compound chemistry Absorption spectroscopy Stereochemistry Photodissociation Phenyl group Singlet state Nanosecond laser Solvent effects Condensed Matter Physics Benzopyran
Zdroj:	Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals. 344:289-294
ISSN:	1058-725X
DOI:	10.1080/10587250008023851
Popis:	ABATRACT The photochromic behavior of 2-phenyl-2-(thien-2-yl)-2H-benzo [b]furano[3,2-f]benzopyran (1) and 2,2-diphenyl-2H-benzo[b] furano[3,2-f]benzopyran (2) was examined by the nanosecond laser photolysis and normal time scale analysis. The results showed that the thienyl group could stabilize the colored forms as compared with the phenyl group and both singlet and triplet states were involved in the formation of the colored forms.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::e5a841376ca91bfe05ba95bdab53e8c7 https://doi.org/10.1080/10587250008023851 Zobrazit plný text záznamu