Electronic Delocalization in Two and Three Dimensions: Differential Aggregation in Indium 'Metalloid' Clusters

摘要

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 [In-68(boryl)(12)](-) (with an In-12@In-44@In-12-(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) (InBr)-Br-III(boryl) system gives a near-planar (and weakly aromatic) tetranuclear [In-4(boryl)(4)](2-) system.