合成了三类稀土硼氢化合物Ln(BH4)3(THF)3[Ln=Er(1),Yb(2)]、[(Me3Si)2NC(NCy)2]Ln(BH4)2(THF)2[Cy=C6H11,Ln=Er(3),Yb(4)]和(ArO)Ln(BH4)2(THF)2[Ar=C6H2-2,4,6-t-Bu3,Ln=Er(5),Yb(6)],首次研究了它们催化环氧环己烷(CHO)开环聚合的性能.其活性顺序为5～6＞1～3＞2＞4,说明吸电性配体以及Lewis酸性较大的稀土元素对金属硼氢化物催化聚合活性是有利的.温度越高,催化剂催化活性越好.聚合物分子量在1万左右,分子量分布在2.2左右.
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