取代偶氮苯衍生物的合成及光色性能

Synthesis and Photochromic Properties of Substituted Azobenzene Derivatives

从取代苯胺出发,经重氮和偶联,合成了7个3-甲氧基-4-氨基取代偶氮苯。目标分子经IR,1H NMR和MS表征,结构与预期一致。经紫外光谱测试表明该类化合物在400 nm左右有最大吸收,具有良好的光致变色性能,其顺反异构符合动力学一级反应。

The seven 3-methoxy-4-amino substituted azobenzenes are synthesized by using substituted aniline as starting material through diazotization and coupling reaction. The structures of target molecules are confirmed by IR, ^1H NMR and MS. The results of UV indicate that all of them have the strongest absorption around 400 nm, which displays the excellent property of photochromism. The study of kinetics shows that the trans-iso isomerization is in accord with one order reaction.