Nitrile functionalized organogermane chalcogenide clusters with hetero-(nor-)adamantane cores

• [(NC(CH2)2Ge)4Ch6] (Ch = S, Se) and [(NC(CH2)2Ge)4Te5]: first CN-fuctionalized 14/16 clusters.
• [(NC(CH2)2Ge)4Te5] represents another example of the rare class of tetrel telluride clusters.
• [(NC(CH2)2Ge)4Te5] represents another example of the rare class of noradamantane-like clusters.
• The formation of [(NC(CH2)2Ge)4Te5] included in-situ GeGe bond formation.

By the synthesis of Cl3Ge(CH2)2CN (1) and subsequent reaction with sodium monochalcogenides, adamantane-type [(NC(CH2)2Ge)4Ch6] (Ch = S (2), Se) and noradamantane-type [(NC(CH2)2Ge)4Te5] (3) were obtained. The compounds represent the first nitrile-functionalized tetrel chalcogenide clusters and the first nitrile-functionalized clusters of the named architectures, and are thus potential precursor for novel reaction pathways to multifunctional core-shell compounds.

Adamantane-type [(NC(CH2)2Ge)4Ch6] (Ch = S, Se) and noradamantane-type [(NC(CH2)2Ge)4Te5] (see Figure) were obtained as first nitrile-functionalized tetrel chalcogenide clusters upon synthesis of Cl3Ge(CH2)2CN and its and reaction with sodium monochalcogenides.Figure optionsDownload as PowerPoint slide