经过三步反应合成了红色晶体,双六甲基二硅胺基二甲基硅基环戊二烯基稀土二价镱配合物[η5-C5H4SiMe3N(SiMe3)2]2Yb(Ⅱ)·2THF,X射线衍射结果表明,[η5-C5H4SiMe2N(SiMe3)2]2Yb(Ⅱ)·2THF属于单斜晶系,空间群为P21/c,α=1.646 87(12)nm,b=0.90770(6)nm,c=3.049 4(3)nm,β=93.642(4)°,V=4.549 3(6)nm3,Z=2,C34H72N2O2Si6Yb,Mr=1 905.41,Dc=1.288g/cm3,F(000)=1 840.00,μ(MoKα)=22.42cm-1(λ=0.071 070nm).收集独立衍射点7 814个,将其中J＞3.00σ(1)的用于结构解析,用全矩阵最小二乘法校正,得最终偏离因子R=0.039,Rw=0.050.8配位的中心镱原子与2个四氢呋喃的氧及2个环戊二烯基配位形成扭曲的四面体结构.
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