Three rare earth coordination compounds of RE (Bim)2 HCI. 4H2O (RE=La, Pr, Nd, Bim=Benz Benzimidazole )have been synthesized and characterized by elemental analysis, IR, UV, malar conductivity measurements) X-ray powder diffractions and TGA-DTA.

• 制备了 3种稀土（La，Pr，Nd）氯化物与苯并咪唑的配合物，用化学分析、元素分析确定其组成为 RE（Bim）2· HCl· 4H2O（Bim为苯并咪唑）。