Chemistry Letters

Photochromic systems utilizing the reversible photoredox reactions between a flavin analogue and benzenethiol derivatives.

M Ishikawa, S Fukuzumi, K Tanii

Index: Ishikawa, Masashi; Fukuzumi, Shunichi; Tanii, Kumiko Chemistry Letters, 1989 , p. 2189 - 2192

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Citation Number: 1

Abstract

Irradiation of a yellowish flavin analogue, riboflavin-2′, 3′, 4′, 5′-tetra-acetate (Fl) in a polymer matrix film as well as in acetonitrile containing benzenethiol derivatives and a base with visible light (λ> 360 nm) results in the decrease in absorbance due to Fl (λ max 442 nm). The color reverts to yellow by irradiation of the samples with ultraviolet light (λ< 360 nm).