一维链状钴配位聚合物{[Co(C_4H_4O_5)(H_2O)_2]·H_2O}_n的合成与晶体结构(英文)  

Syntheis and Crystal Structures of 1D Chain-Like Cobalt(Ⅱ) {[Co(C_4H_4O_5)(H_2O)_2]·H_2O}_n

作　　者：谭雄文[1] 李昶红[2] 李东平[3] 李薇[1] 杨颖群[1] 

机构地区：[1]衡阳师范学院化学与材料科学系,衡阳421008 [2]湖南工学院材料与化学工程系,衡阳421002 [3]南京大学配位化学研究所,南京210093

出　　处：《无机化学学报》2009年第10期1877-1881,共5页Chinese Journal of Inorganic Chemistry

摘　　要：One dimensional chain cobalt coordination polymer has been synthesized with malic acid and cobalt (Ⅱ) chloride anhydrous,and characterized by the element analysis,IR,TGA and single crystal X-ray diffraction structure analysis.The title complex crystallizes in monoclinic system with space group P21,a=0.575 61(9) nm,b= 0.905 86(14) nm,c=0.841 02(13) nm,β=105.350(2)°;V=0.422 88(11) nm3,Z=2,Dc=1.924 Mg.m-3,μ=2.044 mm-1,F(000)=250,and final R1=0.029 3,wR2=0.074 2.The crystal structure shows that the cobalt ion is coordinated with four oxygen atoms from two different malate molecules and two oxygen atoms from two water molecules respectively,forming a distorted octahedral coordination geometry.Two adjacent cobalt (Ⅱ) atoms are bridged by one malate groups in bis-monodentate mode,constructing a one dimensional chain structure along b axis,with the adjacent Co …Co distance being 0.530 9 nm.Moreover,the molecules are packed in three-dimensional supramolecular network though the intermolecular hydrogen bonds.CCDC: 704441.One dimensional chain cobalt coordination polymer has been synthesized with malic acid and cobalt（Ⅱ） chloride anhydrous, and characterized by the element analysis, IR, TGA and single crystal X-ray diffraction structure analysis. The title complex crystallizes in monoclinic system with space group P21, a=0.575 61（9） nm, b=0.905 86（14） nm, c=0.841 02（13） nm, β=105.350（2）°; V=0.422 88（11） nm3, Z=2, Dc=1.924 Mg·m-3, μ=2.044 mm-1, F（000）=250, and final R1=0.029 3, wR2=0.074 2. The crystal structure shows that the cobalt ion is coordinated with four oxygen atoms from two different malate molecules and two oxygen atoms from two water molecules respectively, forming a distorted octahedral coordination geometry. Two adjacent cobalt（Ⅱ） atoms are bridged by one malate groups in bis-monodentate mode, constructing a one dimensional chain structure along b axis, with the adjacent Co…Co distance being 0.530 9 nm. Moreover, the molecules are packed in three-dimensional supramolecular network though the intermolecular hydrogen bonds. CCDC： 704441.

关 键 词：苹果酸 晶体结构 钴(Ⅱ)配合物 

分 类 号：O614.812[理学—无机化学]