一例镍(Ⅱ)配位聚合物的合成、结构与磁性研究  

Synthesis,structure and magnetic properties of a nickel(Ⅱ)coordination polymer

作　　者：伍国云 危冬梅 刘丹 WU Guoyun;WEI Dongmei;LIU Dan(School of Pharmacy,Hunan Food and Drug Vocational College,Changsha 410208,China)

机构地区：[1]湖南食品药品职业学院药学院,湖南长沙410208

出　　处：《邵阳学院学报（自然科学版）》2022年第4期59-64,共6页Journal of Shaoyang University：Natural Science Edition

基　　金：湖南省教育厅科学研究项目(19C1190)。

摘　　要：以苯并咪唑-5-羧酸(Hbimc)、己二酸(H_(2)hex)、硝酸镍为原料,采用水热法合成了一例镍配位聚合物[Ni_(2)(bimc)_(2)(hex)]·2H_(2)O。利用单晶X射线衍射仪测试了该配位聚合物的晶体结构,采用粉末衍射(XRD)、元素分析、红外、热重(TG)等表征了其结构,并进行了磁性测定。单晶结构解析表明,配位聚合物为单斜晶系,空间群为P2_(1)/c,具有二维层状结构。配位聚合物对热稳定,整个框架可以维持到380℃。磁学性质研究表明配位聚合物存在反铁磁相互作用。A nickel coordination polymer[Ni_(2)(bimc)_(2)(hex)]·2 HO was synthesized using 1H-benzimidazole-5-carboxylic acid,adipic acid(Hhex)and nickel nitrate as raw materials by hydrothermal method.The crystal structure of the coordination polymer was tested by single crystal X-ray diffractometer,and its structure was characterized by powder diffraction(XRD),elemental analysis,infrared and thermogravimetry(TG).The magnetic properties were also determined.The analysis of single crystal structure shows that the coordination polymer is monoclinic,the space group is P2_(1)/c,and it has a two-dimensional layered structure.The coordination polymer is thermally stable and the whole frame can be maintained up to 380℃.The study of magnetic properties shows that the coordination polymer has antiferromagnetic interaction.

关 键 词：苯并咪唑-5-羧酸 己二酸 Ni(Ⅱ)配位聚合物 水热法 晶体结构 反铁磁性 

分 类 号：O641[理学—物理化学]