Synthesis and molecular structure of Na{[1,3-(Me₃Si)₂C₅H₃]Yb^II}₂(μ-I)

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• 作者：Voskoboynikov ; Alexander Z. ; Agarkov ; Anton Yu. ; Shestakova ; Alla K. ; Beletskaya ; Irina P. ; et. al.
• 关键词：Ytterbium ; Silicon
• 刊名：Journal of Organometallic Chemistry
• 出版年：1997
• 出版时间：October 5, 1997
• 年：1997
• 卷：544
• 期：1
• 页码：65-68
• 全文大小：338 K

文摘

The reaction of YbI₂ with 2 equiv. of Cp″ Na (Cp″-1,3-(Me₃Si)₂C₅H₃) in boiling toluene gives Na(Cp″₂Yb}₂(μ-I) in 71 % yield. On the evidence of X-ray diffraction analysis of this Yb(II) complex (P2₁/n, a = 13.5582(2), b = 17.4047(2), c = 26.9829(1) Å, β = 97.562(1)°, Z = 4, d_calcd. = 1.404 g cm⁻³, R₁ = 0.0521 and wR₂ = 0.1107), the crystal unit cell contains crystallographically independent anion complex [Cp″₂Yb-I-YbCp″₂] (Yb-I 3.1115(6), 3.0855(6) Å) and Na⁺ cation. No additional neutral ligands were found at the metal atoms.