本文在非水溶剂中合成了无水苯甲酸铜 ( ) .X-射线粉末衍射表明其晶体结构属单斜晶系 ,空间群为 P2 1 / C,晶胞参数 :a=1.0 96 1nm,b=1.2 2 15 nm,c=2 .0 35 8nm,β=90 .82°,V=0 .2 72 5 nm3 ,Z=4.用日本岛津 IR- 435型红外光谱仪测定其红外吸收光谱 ,并对各吸收带进行分析和归属 ,讨论了羧基与金属离子的配位情况 . In this paper, anhydrous copper benzoate was synthesized in nonaqueous solvent. X-ray powder diffraction showed that its crystal structure is monoclinic with space group P2 1 / C. The unit cell parameters are: a = 1.096 1 nm, b = 1.2 2 15 nm, c = 2.035 8 nm, β = 90.82 °, V = 0.272 5 nm3, Z = 4. The IR absorption spectrum was measured with Shimadzu IR-435 infrared spectrometer, The absorption bands were analyzed and assigned, and the coordination between carboxyl groups and metal ions was discussed.