N-Heterocyclic Carbene Coinage Metal Complexes of the Germanium-Rich Metalloid Clusters [Ge₉R₃]^- and [Ge₉R^I₂]²^- with R = Si(ⁱPr)₃ and R^I = Si(TMS)₃.

ABSTRACT: We report on the synthesis of novel coinage metal NHC (N-heterocyclic carbene) compounds of the germanium-rich metalloid clusters [Ge₉R₃]^- and [Ge₉R^I₂]²^- with R = Si(ⁱPr)₃ and R^I = Si(TMS)₃. NHC^DippCu{η³Ge₉R₃} with R = Si(ⁱPr)₃ (1) represents a less bulky silyl group-substituted derivative of the known analogous compounds with R = Si(ⁱBu)₃ or Si(TMS)₃. The coordination of the [NHC^DippCu]⁺ moiety to the cluster unit occurs via one triangular face of the tri-capped trigonal prismatic [Ge₉] cluster. Furthermore, a series of novel Zintl cluster coinage metal NHC compounds of the type (NHCM)₂{η³Ge₉R^I₂} (R^I = Si(TMS)₃ M = Cu, Ag and Au; NHC =

SUBMITTER: Geitner FS 

PROVIDER: S-EPMC6152075 | biostudies-literature | 2017 Jul

REPOSITORIES: biostudies-literature