一个单核钴(Ⅱ)超分子配合物的合成、晶体结构及类Fenton催化性质研究  

Synthesis,Crystal Structure and Fenton-like Catalytic Property of a Cobalt(Ⅱ)Mononuclear Supramolecular Complex

作　　者：张倩[1] 叶英杰[1] 于琼燕[2] 陈垒[1] ZHANG Qian;YE Ying-jie;YU Qiong-yan;CHEN Lei(College of Chemical and Printing-dyeing Engineering,Henan University of Engineering,Zhengzhou 450007,China;College of Materials Engineering,Henan University of Engineering,Zhengzhou 450007,China)

机构地区：[1]河南工程学院化工与印染工程学院,河南郑州450007 [2]河南工程学院材料工程学院,河南郑州450007

出　　处：《化学试剂》2022年第9期1294-1298,共5页Chemical Reagents

基　　金：2018年度河南省自然科学基金项目(182300410222)。

摘　　要：合成得到了一个配体1,3-二羧甲基苯并咪唑,将其与Co(Ac)_(2)·4H_(2)O在水溶液中反应得到了一个新的单核钴(Ⅱ)配合物,并通过X-射线单晶衍射和元素分析表征了其晶体结构。配合物为一个金属中心与2个配体和4个水分子形成的单核结构,单核结构之间再通过O—H…H氢键及π…π堆积作用组装成三维超分子网络结构。并测试了此配合物的物相纯度、热稳定性质和作为非均相类Fenton试剂的催化性质,测试结果表明,配合物显示了良好的物相纯度,对甲基橙溶液可以达到86.0%的降解率,显示了良好的类Fenton催化性质,表明其是一种潜在的催化降解有机污染物材料。We synthesized a ligand 1,3-bis(carboxymethyl)benzimidazolium,which was further reacted with Co(Ac)2·4H_(2)O under aqueous solution for final a new Co(Ⅱ)mononuclear complex.The structure of obtained Co(Ⅱ)mononuclear complex was characterized by X-ray crystal diffraction and elemental analysis.The results showed that the complex was a mononuclear unit with Co(Ⅱ)center coordinated with two ligand and four water molecules,and 3D supermolecular was formed by O—H…H hydrogen bonds andπ…πpacking interactions.In addition,the phase purity,thermostability and catalytic property of the complex for the methyl orange(MO)degradation as Fenton-like reagent were investigated.All these experiments demonstrated the Co(Ⅱ)mononuclear complex exhibited good phase purity and Fenton-like catalytic property with the degradation rate of MO reaching 86.0%,suggesting a potential material for catalytic degradation of organic pollutants.

关 键 词：钴(Ⅱ)超分子配合物 晶体工程 苯并咪唑二羧酸 类FENTON试剂 甲基橙降解 

分 类 号：O614[理学—无机化学]