将配体L[2,5-二-（3,5-二甲基吡唑-4-巯基）-1,3,4-噻二唑]与Co（NO3）2 6H2O,Cd（NO3）2 4H2O和MnCl2 4H2O进行配位反应,得到三个配合物[Co（L）2（H2O）4]（NO3）2 4（CH3CH2OH）（1）,[Cd（L）2（H2O）4]（NO3）2 4（CH3CH2OH）（2）,[Mn（L）2（Cl）2（CH3OH）2]2（CH3OH）（3）,并用元素分析,FT-IR和X射线单晶衍射进行了表征.分析结果表明,配体L呈＂U＂形,配合物1～3呈＂S＂形.配合物中Co（II）,Cd（II）,Mn（II）的配位环境均为扭曲八面体,每个金属离子同时和两个配体进行配位.配体和配合物体外抑菌活性研究结果表明,配体及其配合物都有一定的抑菌活性.%Three complexes [Co（L）2（H2O）4]（NO3）2·4（CH3CH2OH）（1）, [Cd（L）2（H2O）4]（NO3）2·4（CH3CH2- OH） （2） and [Mn（L）2（Cl）2（CH3OH）2]·2（CH3OH） （3） were synthesized from the reaction of 2,5-bis（3,5- dimethylpyrazol-4-thio）-3,4-thiadiazole with Co（NO3）2·6H2O, Cd（NO3）2·4H2O and MnCI2.4H2O, and characterized by elemental analysis, FT-IR and single crystal X-ray diffraction. The results of structural analysis indicate that the ligand （L） was adopted ＂U＂ configuration, and each complex shows a ＂S＂ conformation. In three complexes, the coordination environment of each metal center show a distorted octahedral geometry, and each metal ion was coordinated with two ligands. The bacteriostatic activity results indicated that both of the ligand and complexes possess some bacteriostatic effect.
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