一种有机二阶非线性光学开关材料的合成与理论研究  

Synthesis and Theoretical Investigation of A Novel Organic Second-order Nonlinear Optical Switch

作　　者：张琦 杨帆 禹云枫 张小玲 李仲辉 邓国伟 孙康 ZHANG Qi;YANG Fan;YU Yun-feng;ZHANG Xiao-ling;LI Zhong-hui;DENG Guo-wei;SUN Kang(College of Chemistry and Life Science,Chengdu Normal University,Chengdu 611130,China)

机构地区：[1]成都师范学院化学与生命科学学院,四川成都611130

出　　处：《合成化学》2020年第11期1003-1007,共5页Chinese Journal of Synthetic Chemistry

基　　金：四川省应用基础研究项目(2018JY0118);四川省大学生创新创业计划项目(S201914389070);成都师范学院科研创新团队项目(CSCXTD2020A05)。

摘　　要：以苄氧基取代的苯胺为电子给体、二氰基乙烯为电子受体经Wittig和Knoevenagel缩合反应合成了一种基于二噻吩乙烯的具有开关效应的非线性光学材料,其结构经1H NMR、13C NMR和HR-MS表征,并通过紫外吸收光谱和理论计算分别对目标分子的开/关环行为和微观非线性光学性能进行了研究。结果表明:目标分子在紫外光(365 nm)和可见光照射下可发生关环和开环反应,开/关环状态下化合物的最大吸收波长分别为381 nm和812 nm。A novel dithienylethene-based organic second-order nonlinear optical switch utilizing substituted aniline and dicyanoethane as the electron donor and acceptor respectively was designed and synthesized through Wittig and Knoevenagel condensation reaction.The structure was confirmed by 1H NMR,13C NMR and HR-MS.The open/close behavior and optical nonlinearity of target molecule were studied through UV-vis absorption spectra and theoretical investigation.The results indicated that the photocyclization would occur under the irradiation of UV light(365 nm),and the absorption bands of open state and closure state of the target molecule mainly located near 381 nm and 812 nm.

关 键 词：二噻吩乙烯 非线性光学 开关材料 理论研究 合成 

分 类 号：O625.6[理学—有机化学] O621.2[理学—化学]