Synthesis and crystal structure of coordination polymer [Cu(m-BDOA)(bipy)•H2O]n with 1D chain

A novel coordination polymer, [Cu(m-BDOA)(bipy)(H2O)-H-.](n) (m-BDOA(2-)=benzene-1,3-dioxyacetate), was synthesized and characterized by elemental analysis, IR spectra, X-ray single crystal structure analysis. Crystallographic data are as follows: orthorhombic, space group Pna2(1), a=1.606 9 (3) nm, b=1.685 9 (3) nm, c=0.699 7 (1) run, V=1.8955(7) nm(3), Z=4, D-c=1.619 g(.)cm(-3), mu=1.200 mm(-1), F(000)=948, R=0.038 1, wR=0.038 6. The copper atom is five-coordinated involving two oxygen atoms of different m-BDOA(2-) ligand, two nitrogen atoms of 2,2'-bipy ligand and one coordinated water, there is a distorted square pyramidal environment. Two copper atoms are bridged by m-BDOA(2-) ligand, forming a one-dimensional chain along a axis. The adjacent distance of (CuCu)-Cu-... atoms is 0.877 3 nm. The crystal network was formed by the intermolecular hydrogen bond and pi-packing interactions.