银-二芳基乙烯化合物的合成及其光致变色性质的研究  

Synthesis and photochromic properties of Ag I diarylethylene compounds

作　　者：李邵蕊 徐海兵 曾明华 LI Shaorui;XU Haibing;ZENG Minghua(Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials,Ministry-of-Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules&College of Chemistry&Chemical Engineering,Hubei University,Wuhan 430062,China;Department of Chemistry and Pharmaceutical Sciences,Guangxi Normal University,Guilin 541006,China)

机构地区：[1]湖北省先进有机化学材料协同创新中心(湖北大学),有机功能分子合成与应用教育部重点实验室(湖北大学),湖北武汉430062 [2]广西师范大学化学与药物科学系,广西桂林541006

出　　处：《湖北大学学报（自然科学版）》2024年第2期233-238,共6页Journal of Hubei University：Natural Science

基　　金：国家自然科学基金(21571165、22171075)资助。

摘　　要：金属介导的分子开关配合物在有机光电功能材料及分子器件等领域具有广阔的应用前景。本工作通过配位导向机制将金属离子Ag I与二芳基乙烯开关L结合,制备一种银-二芳基乙烯配位化合物[L-AgNO_(3)]_(2)(CHCl_(3))_(2)(Ag-L)。其单晶结构表明,中心金属离子Ag I与L上不同位置的N原子发生配位作用形成一个扭曲的四面体。通过红外光谱(IR)及核磁共振氢谱(1H NMR)对其结构进行表征,利用紫外-可见分光光谱仪(UV-Vis)研究Ag-L的光致变色行为,探索了其在不同介质中的开闭环过程。一系列研究结果表明,Ag-L化合物在二氯甲烷溶液和聚甲基丙烯酸甲酯(PMMA)中均具有良好的可逆光致变色性质。Metal mediated molecular switch-based complexes have broad application prospects in the fields of organic optoelectronic functional materials and molecular devices.In this study guided by the coordination mechanism,metal ion Ag I was binded with the diarylethene switch L,a silver diarylethene compound[L-AgNO_(3)]_(2)(CHCl_(3))_(2)(Ag-L)was obtained.Its single crystal structure shows that the central metal ion Ag I was coordinated with different N sites on L to form a distorted tetrahedron.Its structure was characterized by IR spectroscopy and 1H NMR spectroscopy.The photochromic behavior of Ag-L was studied using UV-Vis spectroscopy,and its open-ring and closed-ring processes in different media were explored.The results show that Ag-L has favorable reversible photochromic properties both in DCM solution and PMMA films.

关 键 词：二芳基乙烯分子开关 金属-有机配合物 光致变色 

分 类 号：O621.22[理学—有机化学]