基于混合配体的Zn(Ⅱ)/Co(Ⅱ)配合物的晶体结构、荧光性能和磁性  

Crystal Structures,Fluorescent Properties and Magnetism of Zn(II)/Co(II)Complexes Based on Mixed Ligands

作　　者：李波 沈红[1] 毛逢银 李勇辉 LI Bo;SHEN Hong;MAO Fengyin;LI Yonghui(School of New Materials and Chemical Engineering,Yibin Vocational Technical College,Yibin 644000,China;School of Chemical Engineering,Sichuan University of Science&Engineering,Zigong 643000,China)

机构地区：[1]宜宾职业技术学院新材料与化工学院,四川宜宾644000 [2]四川轻化工大学化学工程学院,四川自贡643000

出　　处：《合成化学》2023年第11期895-903,共9页Chinese Journal of Synthetic Chemistry

基　　金：宜宾职业技术学院院级-化工合成、分析环保科研平台项目(ybzy21kypt-10);宜宾职业技术学院院级项目(ZRKY21YB-13)。

摘　　要：为探究对氯苯乙酸—锌、对氯苯乙酸—钴配合物的制备和性能,室温下,通过溶剂挥发法,以对氯苯乙酸(PCPA)、2,2’-联吡啶(bipy)、氯化锌为原料合成了锌(Ⅱ)配合物1[Zn(PCPA)_(2)(bipy)H_(2)O];以对氯苯乙酸(PCPA)、4,4’-联吡啶(4,4’-bpy)、六水合硝酸钴为原料合成了钴(Ⅱ)配合物2[Co(PCPA)_(2)(4,4’-bpy)H_(2)O]。用X射线单晶衍射测定了配合物的晶体结构。结果表明:配合物1属于单斜晶系,P21/n空间群,每个不对称单元由一个锌原子,两个对氯苯乙酸配体及一个2,2’-联吡啶配体组成。配合物2属于单斜晶系,P21/c空间群,每个不对称单元由1个钴原子,2个对氯苯乙酸配体及1个4,4’-联吡啶配体组成。荧光光谱分析结果表明,配合物1的最强激发峰和发射峰分别在335 nm和448 nm,热重分析表明2个配合物在室温下稳定,磁性研究表明配合物2中存在反铁磁性相互作用。In order to explore the preparation and performance of p-chlorophenylacetic acid-zinc complex and p-chlorophenylacetic acid-cobalt complex,the Zinc(II)complex[Zn(PCPA)_(2)(bipy)H_(2)O]was synthesized with p-chlorophenylacetic acid(PCPA),2,2’-Bipyridyl(bipy)and Zinc chloride as main raw materials via solvent evaporation method,the Cobalt(II)complex[Co(PCPA)_(2)(4,4’-bpy)H_(2)O]was synthesized with p-chlorophenylacetic acid,4,4’-Bipyridine(4,4’-bpy)and Cobalt nitrate hexahydrate as main raw materials via solvent evaporation method.The crystal structures were determined by single crystal X-ray diffraction method.The results showed that complex 1 crystallizes in the Monoclinic space group P 21/n with each asymmetric unit consisting of one Zn(II)ion,two 4-chlorophenylacetic acid ligands and one 2,2’-bipyridine ligand.Complex 2 crystallizes in the Monoclinic space group P 21/c with each asymmetric unit consisting of one Co(II)ion,two 4-chlorophenylacetic acid ligands and one 4,4’-bipyridine ligand.Fluorescence spectrum analysis showed that the excitation peak of complex 1 was 335 nm,emission peak was 448 nm.The thermal stability study showed that the complexes are stable at room temperature.The magnetic measurement result of complex 2 showed weak antiferromagnetic interactions among Co(II)ions in complex 2.

关 键 词：锌配合物 钴配合物 对氯苯乙酸 晶体结构 2 2’-联吡啶 4 4’-联吡啶 

分 类 号：O614.121[理学—无机化学]