443890-91-3Relevant academic research and scientific papers
PHOTOCHROMIC MATERIAL
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Page 10-11, (2008/06/13)
A photochromic material having a ring opening quantum yield of 10-3 or lower which does not fade under ambient light is provided. The material comprises a compound belonging to the diheteroarylethene class. The compound has alkoxy group and ary
Dithienylethenes with a novel photochromic performance
Morimitsu, Kentaro,Shibata, Katsunori,Kobatake, Seiya,Irie, Masahiro
, p. 4574 - 4578 (2007/10/03)
Dithienylethenes with low decoloration quantum yields and thermal reversibility at high temperature above 100°C were prepared. Introduction of bulky alkoxy substituents at 2- and 2′-positions of the thiophene rings strongly suppressed the cycloreversion quantum yields. The quantum yields were lower than 10-3, and the photogenerated color remained stable enough under room light. On the other hand, the bulky alkoxy substituent decreased the thermal stability of the colored closed-ring isomers at high temperature. The color of the dithienylethene with cyclohexyloxy substituents faded out in less than 1 min at 160°C.
