[EN] DIARYLETHENE COMPOUND, TEMPERATURE INDICATOR, TEMPERATURE DISPLAY DEVICE, AND PACKAGE<br/>[FR] COMPOSÉ DE DIARYLÉTHÈNE, INDICATEUR DE TEMPÉRATURE, DISPOSITIF D'AFFICHAGE DE TEMPÉRATURE ET BOÎTIER<br/>[JA] ジアリールエテン化合物、温度インジケータ、温度表示デバイス及び包装体
Alkyl substituent effects in photochemical and thermal reactions of photochromic thiophene-S,S-dioxidized diarylethenes
作者:Hiroaki Shoji、Daichi Kitagawa、Seiya Kobatake
DOI:10.1039/c3nj01246h
日期:——
photocycloreversion reaction was suppressed by thiophene-oxidation. The diarylethene closed-ring isomers with secondary alkyl groups at the reactive positions were found to undergo thermal bleaching reactions to produce byproducts. The thermal bleaching reactions were accelerated by introducing a more bulky substituent at the reactive positions. The relationship between the rate constant of the thermal