Photochromism of new 3,5-position hybrid diarylethene derivatives bearing both thiophene and thiazole moieties
作者:Gang Liu、Shouzhi Pu、Xiaomei Wang
DOI:10.1016/j.tet.2010.09.066
日期:2010.11
a hybrid structure of bis(5-thiazolyl)ethene and bis(3-thienyl)ethene were synthesized, and the structures of the four compounds were determined by single-crystal X-ray diffraction analysis. The properties of these diarylethenes, such as photochromism, fluorescence, and electrochemical properties were investigated in detail. All of these compounds showed good photochromism and fluorescence both in solution
合成了基于双(5-噻唑基)乙烯和双(3-噻吩基)乙烯的杂化结构的五个新的二芳烃,并通过单晶X射线衍射分析确定了这四个化合物的结构。详细研究了这些双芳烃的性质,例如光致变色,荧光和电化学性质。所有这些化合物在溶液和PMMA膜中均显示出良好的光致变色性和荧光性。给电子的取代基可以有效地提高环化和环还原的量子产率,并增加荧光发射峰,而吸电子基团对这些二芳基乙烯衍生物起反作用的作用。循环伏安法表明,这些化合物的电化学行为之间存在很大差异。这些二芳硫醚的氧化电位和带隙随着吸电子能力的增加而显着增加。所有结果表明,取代的影响对这些二芳基乙烯衍生物的光化学和电化学行为具有显着影响。