Construction of a 2D Cd(Ⅱ) Coordination Polymer Based on a V-shaped Bidentate Ligand

摘要

A two-dimensional(2D)coordination polymer{[Cd(bdc)(dpb)]·H2O}n(1)has been prepared by solvothermal reaction of 1,3-dipyridyl benzene(1,3-dpb)with deprotonated1,4-benzenedicarboxylate(H2bdc),and was characterized by elemental analysis,IR spectroscopy,and X-ray single-crystal diffraction.It crystallizes in the monoclinic system,space group C2/c with a=15.1839(12),b=20.7585(17),c=7.2989(6),β=117.3450(10)°,V=2043.5(3)3,C24H18N2O5Cd,Mr=526.81,Dc=1.712 g/cm3,F(000)=1056.0,μ=1.110 mm-1and Z=4.The neighboring Cd(II)ions link the bdc2-anions and 1,3-dpb to form an infinite 2D sheet,and such two2D sheets are interlocked with each other to form a 2D→2D sheet.Two groups of interlocked sheets are further linked together by intermolecularπ···πinteraction,giving a 3D supramolecular network.In addition,the fluorescence property of 1 was also studied.