The novel complex [Cu（Phen）（C2O4）H2O]·H2O has been synthesized by K2[Cu（C2O4）2].2H2O and Phen,where Phen=1,10-phenanthroline.The crystal structure of the complex has been determined by Xray diffraction.The crystal belongs to monoclinic system,space group P2（1）/n.The cell parameters are:a=0.8524（13）nm,b=0.9764（14）nm,c=1.766（3）nm,V=1.427（4）nm3,z=4,Dx=1.712g.cm-3,μ（MoKa）=15.65cm-1,F（000）=1268,R1=0.0435,wR2=0.0985.The bond distances of Cu-O and Cu-N are 0.19480.2240nm and 0.20170.2026nm,respectively.The coppercentered locates in a distorted square pyramid.one-dimensional infinit chain is formed through intermolecular hydrogen bonds.And two-dimensional player is formed throuth π-π packing efaction between phenanthrolines.
