具有不同配位环境的Cu(Ⅱ)配合物的合成、结构及光伏性能  

Synthesis,crystal structure and photoelectric property of three Cu(Ⅱ) complexes with different coordination environment

作　　者：金晶[1] 贠吉星 李禹蒙[1] 矫燕 陈冲[1] 计雅楠 巩园园[1] 刘永华[1] 迟玉贤[1] 牛淑云[1] JIN Jing,YUN Jixing,LI Yumeng,JIAO Yan,CHEN Chong,JI Yanan,GONG Yuanyuan,LIU Yonghua,CHI Yuxian,NIU Shuyun(School of Chemistry and Chemical Engineering,Liaoning Normal University, Dalian 116029, Chin)

机构地区：[1]辽宁师范大学化学化工学院,辽宁大连116029

出　　处：《辽宁师范大学学报（自然科学版）》2018年第2期71-77,共7页Journal of Liaoning Normal University:Natural Science Edition

基　　金：辽宁省自然科学基金资助项目(20170540576);辽宁省教育厅科学技术研究项目(L201783635)

摘　　要：采用水热方法合成了3个Cu(Ⅱ)配合物:[Cu2(tol)4(C2H5OH)2](1),[Cu(pzc)2]·4H2O(2),[Cu(bpdc)(Imh)2(H2O)]·2H2O(3)(Htol=对甲基苯甲酸,H2pzc=吡嗪-2-甲酸,H2bpdc=2,2′-联吡啶-4,4′-二甲酸,Imh=咪唑).采用X射线单晶衍射、电子吸收光谱、FT-IR光谱和表面光电压光谱(SPS),进行了表征和物性测定.结构分析表明,3个配合物的中心Cu(Ⅱ)离子呈现不同的配位微环境(依次为五、四和五配位);晶体中分子间氢键将结构单元分别连接成了具有1D、3D和2D结构的配位超分子.SPS测定结果表明:3个配合物在可见光诱导下均呈现出明显的表面光电子行为.并且,中心金属离子周围配位微环境的变化对这种光电子行为有明显影响.Three complexes[Cu2（tol）4（C2 H5 OH）2]（1）,[Cu（pzc）2]·4 H2 O（2）and [Cu（bpdc）（Imh）2（H2 O）]·2 H2 O（3）（Htol=p-toluic acid,H2 pzc=2-pyrazinecarboxylic acid,H2 bpdc=2,2′-bipyridine-4,4′-dicarboxylic acid,Imh=imidazole）have been synthesized by hydrothermal method.The three complexes were structurally analyzed by single crystal X ray diffraction and characterized by UV-Vis-NIR absorption,IR and surface photovoltage spectra（SPS）.Structural analyses show that the central Cu（Ⅱ）ions in three complexes 1~3 are five-,four-and five-coordinated respectively.The complexes 1-3 are networked into 1 D,3 Dand 2 Dcoordination supramolecules through intermolecular H-bonds.The SPS results show that the complexes exhibit positive surface photovoltage response under the inducement of UV-Vis light.Moreover,the difference of coordination microenvironment around central Cu（Ⅱ）ion has a significant effect on the photoelectron behavior.

关 键 词：Cu(Ⅱ)配合物 合成 晶体结构 氢键 光电性能 

分 类 号：O614.3[理学—无机化学]