双键型分子光开关的E/Z异构化

E/Z isomerization of doublebonded molecular photoswitches

适当取代的双键X=Y双键型分子能够在光的作用下发生E型和Z型之间的异构化。目前已报道的分子光开关大多是基于偶氮苯(ABs)、二芳烃乙烯(DAEs)和螺吡喃(SPs)等结构,但新的有趣的结构正在不断被报道。本文将讨论围绕C=C、C=N和N=N双键异构化的各种类型的光开关,重点介绍常用的光开关双键结构和极性质子溶剂等外界因素对其E/Z异构化的影响。

Photo-induced E/Z isomerization can be performed in appropriately substituted X=Y double boaded compounds.The most reported molecular photoswitches are based on the structures of azobenzenes(ABs),diarylethenes(DAEs),and spiropyrans(SPs).And novel and interesting structures are increasingly being reported.In this article,we focused on varions types of photo-switehes based on the isomerization around C=C,C=N,and N-=N double bonds.And the effect of the molecular conformation,ex-ternal polar protic solvents,and other factors on the E/Z isomerization were elucidated.