A Manganese(Ⅱ) polymer {[Mn(bpdc)(bipy)(H2O)]·4.5H2O}n has been synthesized (bpdc=2,2-bipyridine- 3,3-dicarboxylate,bipy=4,4-bipyridine) and characterized by IR, UV, elemental analysis and X-ray crystal structure determination . It crystallizes in Monoclinic system, space group P2/n with a=1.010 13(8) nm, b=1.164 66(9) nm, c= 2.147 40(16) nm, β=98.22 20(10)°, V=2.500 4(3) nm3, Z=4, Dc=1.467 g·cm-3, F(000)=1 144, R1=0.049 0, wR2= 0.141 2. The crystal structure shows that the Mn2+ ions have octahedral coordination geometry with two coordination situations. The Mn2+ (1) ion is coordinated with two N atoms of two bipy, and chelated by four O atoms from four carboxylate groups of two bpdc ligands. The neighbor Mn2+ (2) ion is coordinated with two oxygen atoms from two water, two N atoms of two 4,4-bipy and two O atoms from two carboxylate groups of two bpdc ligands. Mn(1) and Mn(2) ions are bridged by bpdc and bipy ligands, forming a novel 2D network. CCDC: 651043.
The complex [Cu(m-NBA)(2,2'-bipy)(H2O)2]·m-NBA·H2O was obtained by self-assembly of m-nitroben-zoic acid,2,2'-bipyridine and copper(Ⅱ).The crystal structure of the complex has been determined by X-ray diffraction single crystal structure analysis.The crystal belongs to monoclinic system,space group P21/n.The cell parameters are:a=0.705 65(9) nm,b=2.901 2(4) nm,c=1.271 52(2) nm;β=92.895(2)°,and V=2.599 8(6) nm3,Dc= 1.551 g·cm-3,Z=4,μ(Mo Kα)=9.09 cm-1,F(000)=1 244,R1=0.040 7,wR2=0.085 5[I>2σ(I)].The crystal structure shows that the copper(Ⅱ) ion is coordinated with two nitrogen atoms from one 2,2'-bipyridine molecule,one oxygen atom from one m-nitrobenzoic acid molecule and and two oxygen atoms from two water molecules,forming a distorted coordination square-pyramid.The cyclic voltametric behavior of the complex was also studied.
