4,4'-二(苯并咪唑-1-甲基)联苯和间苯二甲酸构筑的钴、镍配合物的合成及性质研究（英文）

The structures and properties of cobalt(Ⅱ) and nickel(Ⅱ) complexes constructed from4,4'-Bis( benzimidazol-1-ylmethyl) biphenyl and isophthalic acid

目的:研究苯并咪唑类化合物结构与性质之间的关系,探讨具有抗菌性质新型苯并咪唑类配合物材料的合成方法。方法:溶剂热条件下,硝酸钴、硝酸镍与4,4'-二(苯并咪唑-1-甲基)联苯(bbmb)和间苯二甲酸(IPA)的自组装生成2个新型配合物{[Co(bbmb)(IPA)]·(H_2O)_3}_n(1)和{[Ni(bbmb)(IPA)(H_2O)]·H_2O}_n(2),并对配合物进行X-射线单晶衍射、热重分析、X-射线粉末衍射及固体紫外等表征。结果:配合物1属于单斜晶系,具有含S形链的二维层状结构,配合物2属于三斜晶系,具有含之字形链和直链的二维层状结构,且2种配合物都具有很强的固体紫外吸收。结论:由具有抗菌性的苯并咪唑衍生物与不同金属离子通过自组装合成了具有不同结构的2种新型配合物,为新型抗菌性配合物的设计合成提供了参考。

Objective： To study the relationship between the properties and the structures of the benzimidazole complexes,and explore the preparation method of new antibacterial benzimidazole complexes materials. Methods： Under solvothermal conditions,the assembly of 4,4＇-bis（ benzimidazol-1-ylmethy1） biphenyl,isophthalic acid and cobalt,nickel salts resulting two new complexes {[Co（ bbmb）（ IPA） ]·（ H2O）3}n（ 1） and {[Ni（ bbmb）（ IPA）（ H2O） ]·H2O}n（ 2）. The complexes were characterized by single crystal X-ray structure analyses,thermogravimetric analyses,powder X-ray diffraction and solid-state ultraviolet measurements. Results： Complex 1had a 2-dimentional sheet framework with S-shaped chains while complex 2 had a 2-dimentional sheet framework constructed from zigzag chains and straight chains. The solid-state UV- Vis absorbance properties were investigated. Conclusions： The structures and properties of the two new benzimidazole complexes are well studied,to provide approaches for the design and exploitation of new benzimidazole complex materials with potential antibacterial activities.