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Reduction of indium boryl precursors to give two- and three-dimensional M−M bonded networks is influenced by the choice of supporting ligand. While the unprecedented nanoscale cluster [In68(boryl)12]− (with an In12@In44@In12(boryl)12 concentric structure), can be isolated from the potassium reduction of a bis(boryl)indium(III) chloride precursor, analogous reduction of the corresponding (benzamidinate)InIIIBr(boryl) system gives a near-planar (and weakly aromatic) tetranuclear [In4(boryl)4]2− system. [ABSTRACT FROM AUTHOR]

Si in sight: A one‐pot, single‐step synthesis of an acyclic silylsilylene, Si{Si(SiMe3)3}{N(SiMe3)Dipp} (Dipp=2,6‐iPr2C6H3), from a silicon(IV) starting material is reported, together with evidence for a mechanism involving alkali metal silylenoid intermediates. [ABSTRACT FROM AUTHOR]

Monomeric five-valence-electron bis(boryl) complexes of gallium, indium, and thallium undergo oxidative M–C bond formation with 2,3-dimethylbutadiene, in a manner consistent with both the redox properties expected for MII species and with metal-centered radical character. The weaker nature of the M–C bond for the heavier two elements leads to the observation of reversibility in M–C bond formation (for indium) and to the isolation of products resulting from subsequent B–C reductive elimination (for both indium and thallium). [ABSTRACT FROM AUTHOR]