Synthesis And Crystal Structure Of A Novel Two-Dimensional Network Copper(Ii) Coordination Polymer {Cu(Mu(2)-C10h8n2o3)(Mu(2)-C6h12n4)(1/2)}(N)

The novel copper(II) coordination polymer with 2-oxo-proplonic acid benzoyl hydrazone and hexamethylenetetramine ligands, {Cu(mu(2)-C10H8N2O3)(mu(2)-C6H12N4)(1/2)}, (C10H8N2O32- is the dinegative ion of 2-oxo-propionicacid benzoyl hydrazone), has been synthesized and characterized by elemental analysis and IR spectroscopy. The crystal structure was determined by single crystal X-ray diffraction analysis. The results show that the crystal of the title coordination polymer belongs to monoclinic space group C2/c, the cell parameters are as follows: a= 1.787 5(2) nm, b=0.73093(9) nm, c=2.038 2(2) nm, beta=92.890(2)degrees, and V=2.659 6(5) nm(3), Z=8, D-c=1.687 Mg(.)m(-3), mu(Mo K alpha)=1.659 mm(-1), F(000)=1 384, R=0.031 1, wR=0.0790 for 2454 observed reflections (I > 2 sigma(I)) out of 2887 unique reflections. In this copper(II) coordination polymer, each copper(II) ion is five-coordinated with a geometry of distorted square-pyramid. Two oxygen atoms of the carboxyl of each C10H8N2O32- acts as a bridge to bond two neighboring copper(II) ions, leading to an infinite one-dimensional chainlike coordination polymer. Each chain is linked by coordinated hexamethylenetetramines with its neighbors to form an infinite two-dimensional network structure.