Photochromism of Diarylethenes on Porous Aluminum Oxide

The photochromism of three diarylethene derivatives was examined on porous aluminum oxide. Upon alternate irradiation with UV and visible light, the diarylethenes having thiophene rings decomposed easily, while a derivative having benzothiophene rings underwent a reversible photochromic reaction. Th...

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Published in:Chemistry letters 2001-04, Vol.30 (4), p.366
Main Authors: Uchida, Kingo, Fujita, Masayuki, Aoi, Yoshifumi, Saito, Mitsunori, Irie, Masahiro
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Fujita, Masayuki
Aoi, Yoshifumi
Saito, Mitsunori
Irie, Masahiro
description The photochromism of three diarylethene derivatives was examined on porous aluminum oxide. Upon alternate irradiation with UV and visible light, the diarylethenes having thiophene rings decomposed easily, while a derivative having benzothiophene rings underwent a reversible photochromic reaction. The decomposition started from the closed-ring isomers of the dithienylethenes. The decomposition mechanism was discussed based on the oxidation potentials of the compounds.
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title Photochromism of Diarylethenes on Porous Aluminum Oxide
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