Syntheses, Crystal Structures and Magnetism of Two New Coordination Polymers [Ni(bix)_2Cl_2]_n and [Co(bix)Cl_2]_n  

作　　者：周慧 杜少武 

机构地区：[1]State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, The Chinese Academy of Sciences

出　　处：《Chinese Journal of Structural Chemistry》2007年第6期711-716,共6页结构化学（英文）

基　　金：This work was supported by the State Key Laboratory of Structural Chemistry, the Ministry of Science and Technology of China (001CB108906) ;the National Natural Science Foundation of China (20333070)

摘　　要：The self-assembly reactions of M^ⅡCl2 （M = Ni, Co） with the flexible bix ligand [bix = 1,4-bis（imidazole-1-ylmethyl）benzene] yielded a 2D network [N^Ⅲ（bix）2Cl2]n 1 and a 1D chain [Co^Ⅱ（bix）Cl2]n 2. Their crystal structures have been determined by X-ray single-crystal diffraction analysis. Complex 1 characters a two-dimensional grid-type structure and crystallizes in monoclinic, space group P21/c with a = 7.7231（7）, b = 12.7787（9）, c = 13.9374（13）A, β = 105.419（4）°, C28H28Cl2N8Ni, Mr = 606.19, Ζ = 2, V = 1326.0（2）A^3, Dc = 1.518 g/cm^3, μ = 0.969 mm^-1, F（000） = 628, R = 0.0429 and wR = 0.0783 for 2503 observed reflections （Ⅰ〉 2σ（Ⅰ））. Compound 2 is a one-dimensional chain and crystallizes in orthorhombic, space group Pbca with a = 11.3696（6）, b = 10.2128（6）, c = 14.4943（9） （A）, C14H14Cl2CoN4, Mr = 368.12, Z = 4, V = 1683.01（17）A^3, Dc = 1.453 g/cm^3, μ = 1.334 mm^-1, F（000） = 748, R = 0.0317 and wR = 0.0800 for 1778 observed reflections （Ⅰ〉 2σ（Ⅰ））. Magnetic properties of the title complexes were also investigated.The self-assembly reactions of M^ⅡCl2 （M = Ni, Co） with the flexible bix ligand [bix = 1,4-bis（imidazole-1-ylmethyl）benzene] yielded a 2D network [N^Ⅲ（bix）2Cl2]n 1 and a 1D chain [Co^Ⅱ（bix）Cl2]n 2. Their crystal structures have been determined by X-ray single-crystal diffraction analysis. Complex 1 characters a two-dimensional grid-type structure and crystallizes in monoclinic, space group P21/c with a = 7.7231（7）, b = 12.7787（9）, c = 13.9374（13）A, β = 105.419（4）°, C28H28Cl2N8Ni, Mr = 606.19, Ζ = 2, V = 1326.0（2）A^3, Dc = 1.518 g/cm^3, μ = 0.969 mm^-1, F（000） = 628, R = 0.0429 and wR = 0.0783 for 2503 observed reflections （Ⅰ〉 2σ（Ⅰ））. Compound 2 is a one-dimensional chain and crystallizes in orthorhombic, space group Pbca with a = 11.3696（6）, b = 10.2128（6）, c = 14.4943（9） （A）, C14H14Cl2CoN4, Mr = 368.12, Z = 4, V = 1683.01（17）A^3, Dc = 1.453 g/cm^3, μ = 1.334 mm^-1, F（000） = 748, R = 0.0317 and wR = 0.0800 for 1778 observed reflections （Ⅰ〉 2σ（Ⅰ））. Magnetic properties of the title complexes were also investigated.

关 键 词：bix magnetic property non-rigid ligand crystal structure 

分 类 号：O627.8[理学—有机化学]