Photochromic reaction behavior and thermal stability of thiophene-S,S-dioxidized diarylethenes having a benzofuryl group
作者:Koki Tanaka、Daichi Kitagawa、Seiya Kobatake
DOI:10.1016/j.tet.2016.03.062
日期:2016.5
Diarylethenes having a benzofuryl group and their thiophene-S,S-dioxidized diarylethenes were synthesized and their optical properties and thermal stability were investigated. Upon oxidation of the thiophene ring, the optical properties such as absorption maxima, photocycloreversion quantum yields, and conversion from the open-ring isomer to the closed-ring isomer have changed. On the other hand, the
合成了具有苯并呋喃基的二芳烃及其噻吩-S,S-二氧化二芳烃,并对其光学性质和热稳定性进行了研究。噻吩环氧化后,光学性质(如最大吸收值,光环还原量子产率以及从开环异构体到闭环异构体的转化)发生了变化。另一方面,S,S-二氧化二芳烃的闭环异构体的热稳定性显着高于噻吩-S,S-具有苯噻吩基而不是苯并呋喃基的-二氧化二芳烃。基于量子化学计算获得的基态能量,定量讨论了闭环异构体的高热稳定性。