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新型氰基桥联配位聚合物[Ni（en）₂]₂[Ni（CN）₄]₂·5H₂O的合成、晶体结构和磁性质

Synthesis, Crystal Structure and Magnetic Properties of a New Cyano-bridged Assembly [Ni（en）₂]₂[Ni（CN）₄]₂·5H₂O

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【Author】 YUAN Ai Hua1,2 YANG Xu Jie1 LIU Xiao Heng1 YU Kai Bei3 LU Lu De*,1 (1Material Chemistry Laboratory, Nanjing University of Science and Technology, Nanjing 210094) (2School of Material Science and Engineering, East China Shipbuilding Institute, Zhenjiang 212003) (3Analysis Center, Chengdu Branch of Chinese Academy of Science, Chengdu 610040)

【机构】南京理工大学材料化学实验室；中国科学院成都分院分析测试中心；南京理工大学材料化学实验室南京210094；华东船舶工业学院材料科学与工程学院；镇江212003；南京210094；成都610040；南京210094；

【Abstract】 A new cyano bridged assembly,2·5H2O, prepared by slow diffusion of an aqueous solution of K2 and an aqueous solution of ClO4 in an U tube, has been characterized by X ray structure analysis, IR and magnetic measurements. The crystal crystallizes in orthorhombic, space group Pnna, a=2.8189(5)nm, b=0.8407(2)nm, c=1.4554(2)nm, V= 3.4491(11)nm3 and Z=4. The complex is built up of infinite chains which are formed by trans Ni(en)2 μ (NC)2, cis μ (NC)2Ni(CN)2 and cis μ (CN)2Ni(en)2 groups. The variable temperature magnetic susceptibility has been measured in the 5～300K range. A magnetic susceptibility study indicates the presence of a weak antiferromagnetic interaction and gives it’s weiss constant θ=2.6K. CCDC: 207329.更多还原

【关键词】镍(Ⅱ)配合物；氰基桥联；晶体结构；磁性质；
【Key words】 nickel? complex cyanide bridged crystal structure magnetic properties；

【基金】江苏省教育厅自然科学基金资助项目(No.01KJB150010)