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.
