Di-tert-butylcyclopentadienyl complexes of europium and ytterbium: synthesis and crystal structures of (1,3-But 2C5H3)2 Eu·THF, (1,3-But 2C5H3)(C5Me5)Yb·THF, and $$\left( {1,3 - Bu^t _2 C_5 H_3 } \right)_2 Yb(\mu _2 - Cl)_2 Li(THF)_2 $$
作者:A. V. Khvostov、B. M. Bulychev、V. K. Belsky、A. I. Sizov
DOI:10.1007/bf02494868
日期:1999.11
The (1,3-(Bu2C5H3)-C-t)(2)Eu . THF complex was prepared by the reaction of 1,3-(Bu2C5H3Na)-C-t with EuI2 in tetrahydrofuran. The mixed-ligand (1,3-(Bu2C5H3)-C-t)(C5Me5)Yb . THF complex was obtained by the reaction of YbI2 with C5Me5Na and 1,3-(Bu2C5H3Na)-C-t. The reaction of 1,3-(Bu2C5H3Li)-C-t with YbCl3 afforded the (1,3-(Bu2C5H3)-C-t)(2)Yb(mu(2)-Cl)(2)Li(THF)(2) ate-complex. The structures of the title compounds were established by X-ray diffraction analysis.