文档介绍：Dyes and Pigments 89 (2011) 271e277
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Dyes and Pigments
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Substrate induced catalysis: Deciphering the weak acid triggered
bleaching of an angular terthiazole photochromic dye
T. Nagakawa a, C.-L. Serpentini b, C. Coudret b,*, J.-C. Micheau b,
a Graduate School of Materials Science, NAIST, 8916-5 Takayama, Ikoma, Nara 630-0192, Japan
b Université de Toulouse, UPS, IMRCP, 118 route de Narbonne, F-31062, Toulouse Cedex 9, France
article info abstract
Article history: The thermal bleaching of the ring-closed colored isomer of a photochromic triangle terthiazole induced
Received 29 January 2010 by a weak acid in acetonitrile was investigated from a kinetic point of view. A realistic model was
Received in revised form proposed involving not less than nine species and thirteen elementary processes. Our studies highlight
19 March 2010
the importance of the transient monoprotonated species in the carbonecarbon bond weakening and
Accepted 23 March 201