[{Cp*(OC)2Re}2(μ‐POH)], a Dinuclear Complex with a Bridging Hydroxiphosphinidene Ligand The reaction of [{Cp*(OC)2Re}4(μ4‐η1 : η1 : η1 : η1‐P2)] ( 1 ) with 0.1 m HCl gives [{Cp*(OC)2Re}2(μ‐POH)] ( 2 ), the X‐ray crystal structure of which reveals a dinuclear rhenium complex with a μ‐POH (hydroxiphosphinidene) ligand.