The rare earth?transition metal complex [LaCu6（OH）3（ClO4）3（Gly）6（Im）6]（ClO4）2·3（MeOH） （Gly = glycine，Im = imidazole） has been synthesized by evaporation method.The complex crystallizes in the trigonal crystal system with the R3 space group，a=1.591 99（12） nm，b=1.591 99（12） nm，c=2.354 20（2） nm，α=β=90°，γ=120°.The coordination units of the complexes are extended into three?dimensional structures via various forms of hydrogen bonding.The properties of the complex were characterized by infrared analysis，thermogravimetric analysis，fluorescence analysis and magnetic analysis.The results showed that the weight loss process of the complex is roughly divided into three steps，and the complex shows great thermal stability.Three characteristic peaks were found in fluorescence emission spectrum of the complex，which indicates that the complex exhibits weak fluorescence.There is antiferromagnetic interaction between metal ions in the complex.
