作者:Masato Ohsumi、Masaki Hazama、Tuyoshi Fukaminato、Masahiro Irie
DOI:10.1039/b802780c
日期:——
Photochromism of a symmetric diarylmaleimide derivative, having two thiophene rings (1), and a non-symmetric derivative having a S,S-dioxide thiophene ring and a thiophene ring (2) as the aryl moieties, was studied in various solvents. The photocyclization quantum yield of gradually decreased with increasing the solvent polarity and the reaction was not observed in polar solvents, such as ethanol and
在各种溶剂中研究了具有两个噻吩环(1)的对称二芳基马来酰亚胺衍生物和具有S,S-二氧化物噻吩环和噻吩环(2)作为芳基部分的非对称衍生物的光致变色。随着溶剂极性的增加,光环化量子产率逐渐降低,在乙醇,乙腈等极性溶剂中未观察到反应。另一方面,未观察到对光环化反应如此强的溶剂依赖性。不同的行为归因于S,S-二氧化物噻吩环的电子给体能力较弱。