title: {Ge9[Si(SiMe3)3]2}(2-): a starting point for mixed substituted metalloid germanium clusters.
abstract: Deeper investigations on the silylation reaction of the Ge9(4-) 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(Hyp(Ph3))](-) (Hyp(Ph3) = Si(SiMe3)2(SiPh3)), opening a way to a variety of mixed substituted Ge9 clusters for future investigations.
authors.affiliation: Universität Tübingen, Auf der Morgenstelle 18, 72076 Tübingen, Germany. andreas.schnepf@uni-tuebingen.de.
authors.forename: O
authors.initials: O
authors.lastname: Kysliak
authors.forename: A
authors.initials: A
authors.lastname: Schnepf