Unusual selective substitution of triply bridging carbonyl ligands for GaCp* in Rh6(CO)16. Synthesis and structural characterization of the Rh6(μ3-CO)4 −x(μ3-GaCp*)x(CO)12 clusters, x = 1–4

Reactions of hexanuclear rhodium clusters with GaCp* (Cp* = C5Me5) result in unusual substitution of face bridging CO ligands to give a series of the Rh6(μ3-CO)4 − x(μ3-GaCp*)x(CO)12 substituted derivatives.