点击化学修饰对称结构卟啉分子的RSA-SA翻转性能

摘要

To improve the nonlinear optical ( NLO) properties of materials, the porphyrins were modified by post-functionalizations using typical [2+2] click reactions. Their NLO properties were studied by Z scan technology. The effect of the different conjugated-systems and electron-withdrawing properties on NLO properties of the novel porphyrins was discussed based on the different chemical structures ( kinds of the central ions and the click moieties) . One special NLO phenomena was observed here. As the side groups, the click moieties strongly affected the third-order NLO responses, and all the compounds exhibited the RSA-SA reversed NLO properties.%为了提升材料的非线性光学性质,使用[2+2]点击化学反应后功能化了卟啉材料。利用Z 扫描技术测试了材料的非线性光学性质。基于材料不同的化学结构(包括中心离子和点击基团的种类),讨论了不同的共轭结构和吸电子基团对新型卟啉材料的非线性光学性能的影响。研究中还发现了一个特殊的非线性光学现象。究其原因作为侧基的点击基团强烈地影响着材料三阶非线性光学响应,并且所有的材料都具有反饱和非线性吸收( reverse saturated absorption,RSA)-饱和非线性吸收( saturated absorption,SA)翻转的非线性光学性能的特性。