Some pyridine-2-thiolato and 6-methylpyridine-2-thiolato complexes of manganese: Crystal structure of [Mn-2(mu-pyS)(2)(CO)(6)] (pyS=pyridine-2-thiolato ligand)

The complexes [Mn-2(mu-pyS)(2)(CO)(6)] (1) and [Mn-2(mu-MepyS)(2)(CO)(6)] (2), where pySH=pyridine-2-thiol and MepySH=6-methylpyridine-2-thiol, have been made by reaction of Mn-2(CO)(10) with the appropriate pyridinethiol in refluxing hexane. In these complexes pyS and MepyS act as both six electron donor chelating and bridging groups which form four-membered N,S chelate rings at one metal centre and bridge to the other metal atom through sulphur. Complex 2 reacts with PPh(3) and Ph(2)PCH(2)PPh(2) (dppm) in refluxing cyclohexane to give [Mn(MepyS)(PPh(3))(CO)(3)] (3) acid [Mn(MepyS)(eta(1)-dppm)(2)(CO)(2)] (4) respectively. The crystal structure of 1 was determined.