Abstract: The waterless cupric benzoate is synthesized in nonaqueous sovent. The X ray diffraction patterns show that the complex belongs to a monoclinic system ,P21/C,a=1.0961 nm,b=1.2215 nm,c=2.0358 nm,β=90.82°,V=0.2725 nm 3,Z=4.The IR spectrum is recorded with a Shimadzu IR 435 spectrometer and the vibrational bands are assigned.The coordinate structure of carboxylate groups with cupric ions is discussed.