Monomeres Trilithium-tris[tert-butyldimethylsilylamido]phenylsilan,PhSi[NLi(THF)SiMe2CMe3]3 -- Darstellung und Kristallstruktur

Monomeric Trilithium-tristert-butyldimethylsilylamido]phenylsilane, PhSiNLi(thf)SiMe₂CMe₃]₃ – Synthesis and Crystal Structure Lithiated tert-butyldimethylsilylamine reacts with trifluorophenylsilane in a molar ratio 2:1 or 3:1 to give the bis- and tris(silylamino)silanes 1 (Me₃CSiMe₂NH)₂SiFPh] and 2 (Me₃CSiMe₂NH)₃SiPh]. The trilithium derivative 3 Me₃CSiMe₂NLi(thf)]₃SiPh is obtained in the reaction of 2 with n-BuLi in hexane/thf. 3 crystallizes as a monomer forming three planar four-membered (LiNSiN)-rings. The results of the crystal structure of 3 are discussed.