A Tetranuclear Co(Ⅱ) Coordination Cluster with Thienyl-based Quinolinate Ligand and Nitrate Ligands:Syntheses,Structure and Magnetic Properties  

作　　者：姬文晋 杨百兴 胡升 霍延平 

机构地区：[1]School of Chemical Engineering and Light Industry, Cruangdong University of Technology, Guangzhou 510006, China

出　　处：《Chinese Journal of Structural Chemistry》2017年第7期1147-1155,共9页结构化学（英文）

基　　金：Supported by the National Natural Science Foundation of China(No.21372051,61671162);the Science and Technology Planning Project of Guangdong Province(No.2013B021700001,2016A010103031);the Excellent Young Teacher Development Project of Universities in Guangdong Province(No.261532106);the Guangzhou Science and Technology Program(No.502150105)

摘　　要：One novel Co（II） coordination polymer, namely [Co4（L）6（NO3）2] （1） was prepared by solvothermal reactions of Co（NO3）2 with a （E）-2-[2-（3-thienyl）ethenyl]-8-quinolinol ligand （HL）, which has been determined by single-crystal X-ray diffraction analyses and further characterized by means of elemental analyses, IR spectra, PXRD and thermogravimetric analyses （TGA）. The core structure of complex 1 is an incomplete dicubane-like tetranuclear Co（II） cluster, which is surrounded by six 8-hydroxy-quinolinate-based ligands and two nitrate ligands. Weak S-O interactions between the thienyl groups and nitrate ligands extend the adjacent tetranuclear CoOI） clusters into a supramolecular （4, 4） net structure. Magnetic measurement indicates that the coupling within both molecules is overall antiferromagnetic.One novel Co（II） coordination polymer, namely [Co4（L）6（NO3）2] （1） was prepared by solvothermal reactions of Co（NO3）2 with a （E）-2-[2-（3-thienyl）ethenyl]-8-quinolinol ligand （HL）, which has been determined by single-crystal X-ray diffraction analyses and further characterized by means of elemental analyses, IR spectra, PXRD and thermogravimetric analyses （TGA）. The core structure of complex 1 is an incomplete dicubane-like tetranuclear Co（II） cluster, which is surrounded by six 8-hydroxy-quinolinate-based ligands and two nitrate ligands. Weak S-O interactions between the thienyl groups and nitrate ligands extend the adjacent tetranuclear CoOI） clusters into a supramolecular （4, 4） net structure. Magnetic measurement indicates that the coupling within both molecules is overall antiferromagnetic.

关 键 词：8-HYDROXYQUINOLINE tetranuclear complex crystal structure magnetic property 

分 类 号：O641.4[理学—物理化学] TN929.5[理学—化学]