A Rare Phosphane Coordination Mode: A Symmetrically μ2-Bridging Phosphole in a Dinuclear Palladium(I) Complex

Abstract

A simple reduction of the PdII complex 1 affords the PdI dimer 2, featuring a μ2 symmetrically bridging phosphole unit, and thus a novel coordination mode for a tertiary phosphane. Complex 2 appears to be very stable towards additional ligands such as CO and PPh3, and the structural data are in accordance with calculations, which reveal that the Pd−Pd and Pd−P bonding is highly delocalized.