Preparation and Some Reactions of Diarylgermylenedialkali Metals
作者:Kunio Mochida、Naoki Matsushige、Mari Hamashima
DOI:10.1246/bcsj.58.1443
日期:1985.5
The reactions of diarylgermanes with alkali metals in HMPA/THF or THF were found to give the corresponding diarylgermylenedialkali metals in high yields. Diphenylgermylenedipotassium reacted with aryl halides or carbonyl compounds to give reduction products predominantly. With alkyl halides, diphenylgermylenedipotassium gave mainly substitution products.
Tetraaryl-methane analogues in group 14-4. Ph4−nM(p-Tol)n (n = 0–4, M = Si, Ge, Sn, Pb). Synthesis, structural and spectroscopic data, and semi empirical calculations: Mutual interaction of tetrahedral σ-orbitals (symmetry and electronegativity) and delocalized σ-lumos (π-Lewis acidity)
been synthesized by lithium (M = Si) or Grignard methods (M = Ge, Sn, Pb). The crystal structure of Ph 3 Sn( p -Tol), a survey of the 10 known structures and spectroscopic data (NMR, Mossbauer, IR, Raman) are given. A change of the symmetry of the formally tetrahedral MC 4 backbone arises if M = Si and Ge (elongation along one S 4 or C3 axis) are altered to M = Sn and Pb (contraction along one S 4 axis)