The first explicit success in this area was published in 1977, which featured a pentacarbonylhydridomanganese(I) Mn source, with Se(PF2)2 as the reductant. The balanced equation for this transformation is:2 Mn(CO)5(H) + Se(PF2)2 -> Mn2(CO)10 + PF2H + Se=PF2HAlterations of the terminal reductant have been reported in the manganese hydride case. Similar methods exist for Mn(CO)5X compounds where X = Cl, Br, or I, and more rarely, Mn(CO)6 bound with a weakly coordinating anion.
