ic201730g_si_004.cif (23.42 kB)
{Sn9[Si(SiMe3)3]3}− and {Sn8Si[Si(SiMe3)3]3}−: Variations of the E9 Cage of Metalloid Group 14 Clusters
dataset
posted on 2012-04-02, 00:00 authored by Claudio Schrenk, Marco Neumaier, Andreas SchnepfThe disproportionation reaction of the subvalent metastable
halide
SnBr proved to be a powerful synthetic method for the synthesis of
metalloid cluster compounds of tin. Hence, the neutral metalloid cluster
compound Sn10[Si(SiMe3)3]6 (3) was synthesized from the reaction of SnBr with
LiSi(SiMe3)3. In the course of the reaction
anionic clusters might also be present, and we now present the first
anionic cluster compound {Sn8E[Si(SiMe3)3]3}− (E = Si, Sn), where one
position in the cluster core is occupied by a silicon or a tin atom,
giving further insight into structural variations of E9 cages in metalloid group 14 cluster compounds.