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Photoelectrocatalysis to Improve Cycloreversion Quantum Yields of Photochromic Dithienylethene Compounds
Author(s) -
Lee Sumin,
You Youngmin,
Ohkubo Kei,
Fukuzumi Shunichi,
Nam Wonwoo
Publication year - 2012
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201206256
Subject(s) - photochromism , photochemistry , chemistry , electron transfer , catalysis , quantum efficiency , quantum , ion , materials science , optoelectronics , organic chemistry , physics , quantum mechanics
An open and shut case : Photoirradiation of the 9‐mesityl‐10‐methylacridinium ion, which acts as a photoredox catalyst, evoked catalytic cycloreversion of the photochromic 1,2‐dithienylethene (DTE) compounds with one order of magnitude enhancement in quantum yields. Mechanistic studies revealed that the back electron transfer and electron transfer from the neutral closed form of DTE compounds to the open‐form radical cation are key steps.