铜、铁席夫碱配合物的合成、晶体结构和性质  

Synthesis,Crystal Structure and Properties of Schiff Base Complexes of Copper or Iron

作　　者：王会生 张柯 于灵燕 陈勇 潘志权 WANG Huisheng;ZHANG Ke;YU Lingyan;CHEN Yong;PAN Zhiquan(School of Chemistry and Environmental Engineering,Wuhan Institute of Technology,Wuhan 430205,China)

机构地区：[1]武汉工程大学化学与环境工程学院

出　　处：《武汉工程大学学报》2019年第6期511-516,共6页Journal of Wuhan Institute of Technology

基　　金：国家自然科学基金（21201136）;湖北省教育厅重点项目（D20191502)

摘　　要：为了研究含席夫碱配体配合物的晶体结构及其热稳定性与选择的金属盐之间的关系,使用双2-羟基3-甲氧基苯甲醛缩邻苯二胺(H2L)与CuCl2.2H2O或与无水FeCl3在不同反应体系中反应,并分别得到配合物[Cu(L)(H2O)]·CH3OH(1)和配合物[Fe(L)(N3)(H2O)]·CH3COOC2H5(2)。晶体结构表明1和2均属于单斜晶系,它们分别属于P21和P21/c空间群。1和2都为单核配合物,其中Cu2+和Fe3+分别采取五配位四角锥构型和六配位八面体构型。热重分析研究表明:配合物1在温度达到150℃之前是稳定的,显示Cu2+与配位水之间配位能力较强;而对于配合物2,样品稳定温度只能到65℃左右,到104℃时乙酸乙酯溶剂分子完全失去。1和2热稳定性研究为今后使用该席夫碱配体合成其他配合物提供了一定的参考价值。To investigate the relationship between the crystal structures and thermal stabilities of the complexes containing Schiff base ligands and the employed metal ions,N,N’-bis(2-oxy-3-methoxybenzylidene)-1,2-phenylenediamine(H2 L)was reacted with CuCl2·2 H2 O or anhydrous FeCl3 in the different reaction systems to obtain two mononuclear complexes,[Cu(L)(H2 O)]·CH3 OH(1)and[Fe(L)(N3)(H2 O)]·CH3 COOC2 H5(2).Single crystal X-ray diffraction analysis indicate that complexes1 and2 belong to monoclinic P21 and monoclinic P21/c space groups,and both are mononuclear complexes,in which Cu2+ion adopts five-coordinate and has a quadrangular pyramid,while Fe3+adopts six-coordinate and has a distorted octahedron geometry.Thermogravimetric analysis indicates that the sample of1 is stable when temperature increases to 150℃,exhibiting that the strong coordination ability between Cu2+and coordinated H2 O molecule.While,complex2 is stable when the temperature increases to about 65℃.With the temperature further increasing to 104℃,CH3 COOC2 H5 solvent molecules are lost completely.The thermal stabilities of1 and2 have provided some experience for obtaining other complexes by employing the Schiff base ligand.

关 键 词：席夫碱 铜、铁 配位化合物 晶体结构 热重分析 

分 类 号：O611[理学—无机化学]