Synthesis and solid-state structure of (Me3Si)3CGeCH(SiMe3)2, a monomeric dialkylgermylene

1991/06/01 by P. JUTZI, Anke Becker, Hans‐Georg Stammler +1 · 4 citations
Chemistry · #Synthesis and characterization of novel inorganic/organometallic compounds #Organoboron and organosilicon chemistry #Coordination Chemistry and Organometallics

paper · doi:10.1021/om00052a002

openalex publication_date 1991/06/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/01

Abstract

The reaction of Me5C5GeCH(SiMe3)2 with LiC-(SiMe,)3 affords (Me3Si)3CGeCH(SiMe3)2 (2), the first unsymmetrically substituted dialkylgermylene, which is stable at ambient temperature. In the solid state, the germylene 2 is monomeric, whereas Lappert's germylene [(Me3Si)2CH]2Ge (1) shows a dimeric structure with a Ge=Ge double bond. Steric effects of the additional trimethylsilyl group in 2 are responsible for these drastic changes in the structure. The germylene Me3SiCH2GeCH(SiMe2)2 (3) decomposes at about -20° C.

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