Bis(di-tert-butylcyclopentadienyl)ytterbium(ii). Synthesis and catalytic properties
作者:S. Va. Knjazhanski、A. I. Sizov、A. V. Khsostov、B. M. Bulychev
DOI:10.1007/bf01431818
日期:1996.7
Polymeric (Cp(2)Yb . THF)(n) (1), ionic ate-complex Cp(3)YbNa (2), and mono-adduct ((BU2C5H3)-C-t)2 YB . THF (3) were prepared through a reaction of Cp''Na (Cp'' = C5H5 or C5H3BU2t) with YbI2 in THF. Cooling complex (3) in THF at -100 degrees C gives a bis-adduct, which reversibly dissociates to give the mono-adduct. The (Bu(2)(t)C(5)H(3))(2)Yb . THF complex shows catalytic activity in the homogeneous hydrogenation of hex-1-ene and in the polymerization of styrene.