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机构地区:[1]洛阳师范学院化学化工学院,河南洛阳471022
出 处:《洛阳师范学院学报》2009年第2期56-58,共3页Journal of Luoyang Normal University
摘 要:合成了一个新的Co2+配合物[Co(bpdc)(H2O)2]n(bpdc=2,2’-bipyridyl-3,3’-dicarboxylato),并通过X-射线单晶衍射测定了其晶体结构.该配合物属单斜晶系,C2/c空间群,晶胞参数:a=11.676(3),b=8.070(2),c=13.028(4),α=γ=90°,β=100.303(3)°;Z=4,D=1.854mg/m3,V=1207.8(6)3;[I>2σ(I)].该配合物为八面体结构,通过Co2+和一个配体bpdc的两个吡啶N原子、另外一个配体bpdc的两个不同羧基的O原子和两个配位水分子的O原子所构成.bpdc作为桥连配体,连接着两个中心Co2+,构成一维无线链,进而通过氢键形成二维网状结构.A new cobalt (Ⅱ) complex, [ Co (bpdc) ( H2O) 2 ] n ( bpdc = 2,2' - bipyridyl - 3, 3' - dicarboxylato), has been synthesized and its structure determined by X-ray diffraction. The crystal structure of complex belong to Monoclinic system, space group C2/c with a=11.676(3)A,b=8.070(2)A,c=13.028(4)A,α=γ=90°,β=100.303(3)°;Z=4,D=1.854mg/m^3,V=1207.8(6)A^3;[I〉2σ(I)]. In the complex, each Co^2+ is octahedrally coordinated by two chelating pyridyl N atoms from one ligand (bpdc) , two chelating carboxyl O atoms from different carboxylate groups of another ligand (bpdc) , and two coordination water molecules. The pbde as a bridge ligand links two cobalt (Ⅱ) centers to form one-dimensional chain, and via hydrogen bonds to structure two- dimensional reticulation.
关 键 词:2 2’-联吡啶-3 3’-二羧酸(bpdc) 钴 晶体结构
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