Boranyl-Functionalized [Ge₉ ] Clusters: Providing the Idea of Intramolecular Ge/B Frustrated Lewis Pairs.

ABSTRACT: The unique three-dimensional structure of spherical, homoatomic nine-atom germanium clusters opens various possibilities for the spatial arrangement of functional groups. Ligands comprising lone pairs have recently been introduced in the cluster sphere, and we now report the addition of a boranyl group to the cluster featuring a Ge-B exo-cluster bond. The reaction of the twofold-silylated cluster [Ge₉ {Si(TMS)₃ }₂ ]^2- (TMS=trimethylsilyl) with 2-chloro-1,3,2-diazaborolidines DAB^R -Cl leads to the first boranyl-functionalized [Ge₉ ] clusters [Ge₉ {Si(TMS)₃ }₂ DAB^R ]^- (R=methyl (1 a), iso-propyl (2 a), ortho-tolyl (3 a)). The anions 2 a and 3 a were structurally characteri

SUBMITTER: Wallach C 

PROVIDER: S-EPMC7898805 | biostudies-literature | 2021 Feb

REPOSITORIES: biostudies-literature