Syntheses and crystal structure of 1-D coordination polymer of cadmium doubly bridged by chlorine ions

A novel 1-D transition metal coordination polymers [Cd(HPIPZ)Cl3]·H2O,(PIPZ=piperazine) has been hydrothermally synthesized and characterized by means of elemental analyses and single crystal X-ray diffraction.Chlorine Ions doubly bridge the Cd(Ⅱ) to form a 1-D Chain,HPIPZ molecules are attached to the1-D chain as branches of the chain by coordinating to the Cd(Ⅱ).3-D supramolecular network was formed through N—H…O and O—H…Cl hydrogen bond interactions between chains.The crystallographic data are crystallized in Monoclinic with group Pnma,a=0.775 3(5) nm,b=0.990 9(2) nm,c=1.337 7(4) nm,V=1.027 8(01) nm3,Z=4,R1=0.027 7,wR2=0.071 2 [I2σ(I)].Moreover,the spectral properties and TGA spectrum have been further studied and discussed.