[(η3-Bi3)2(IrCO)6(μ4-Bi)3]3−: a new archetype of a 15-vertex deltahedral hybrid from Bixx−-coordination aggregation of cationic [IrCO]+ units

Abstract

The reaction of Ir(CO)₂(acac) (acac = acetylacetonate) and K₅Bi₄ in ethylenediamine (en) solution produces a new archetype of a 15-vertex deltahedral hybrid, [(η³-Bi₃)₂(IrCO)₆(μ₄-Bi)₃]³⁻ (1a), from the Bi_x^x−-coordination aggregation of the [Ir(CO)]⁺ cationic units, providing a feasible route towards new hybrid compounds made by the combination of Zintl anions and transition-metal carbonyl clusters.