{Ge9[Si(SiMe3)3]2}2−: a starting point for mixed substituted metalloid germanium clusters†
Abstract
Deeper investigations on the silylation reaction of the Ge94− Zintl anion are provided. The reaction of K4Ge9 with two equivalents of ClHyp (Hyp = Si(SiMe3)3) gives the metalloid cluster compound [Ge9(Hyp)2]2−. Subsequent reactions with this compound give access to the first mixed trisubstituted metalloid cluster [Ge9(Hyp)2(HypPh3)]− (HypPh3 = Si(SiMe3)2(SiPh3)), opening a way to a variety of mixed substituted Ge9 clusters for future investigations.