文献报道利用无水三氯化稀土和C_5Me_5M反应得到的稀土化合物一般都是(ML_2)[(C_5Me_5)_nLnCl_(4-n)]型的阴离子型络合物,其中L是路易氏碱。最近我们在研究[HP(C_2H_5)_3]_2CeCl_6和C_5Me_5Na以摩尔比1:4反应时,成功地分离得到了Ce(Ⅲ)的中性络 Reported in the literature using rare earth trichloride and rare earth compounds C_5Me_5M rare earth compounds are generally (ML_2) [(C_5Me_5) _nLnCl_ (4-n)] type of anionic complexes, wherein L is Lewis base. Recently, when we studied the reaction of [HP (C_2H_5) _3] _2CeCl_6 and C_5Me_5Na at a molar ratio of 1: 4, we successfully obtained the neutral network of Ce (Ⅲ)