Synthesis of mono-η-benzenebis(trimethylphosphine)-manganese and -rhenium compounds using the metal atoms

Co-condensation of manganese or rhenium atoms with a mixture of benzene and trimethylphosphine forms the compounds Mn(η-C6H6)(PMe3)2H and [Re(η-C6H6)(PMe3)2]2 respectively; the latter gives rise to the derivatives Re(η-C6H6)(PMe3)2R (R = I or H).