title: [V(eta5-C5H5)]2C8H6: a bimetallic pentalene-bridged complex with multiple bonding between the metal atoms.
abstract: The bimetallic complex [V(Cp)]2Pn, containing a V-V triple bond, has been synthesised; the vanadium centres adopt a syn-coordination and the complex exhibits a high-spin/low-spin equilibrium in both solution and the solid-state.