Abstract
This work comprises the synthesis and characterization of aminophosphine (PN)-derived Mn(I) carbonyl complexes and the preliminary investigation of their alkylated congeners for catalytic applications. The complexes fac-[Mn(PN)(CO)(3)Br] are obtained from the reaction of Mn(CO)(5)Br with the bidentate ligand PN = R(2)N(CH(2))(2)PR'(2), where R = Me, Et, and pyrrolidine and R' = Ph, iPr, and Cy. Treatment of fac-[Mn(PN)(CO)(3)Br] with AgOTf yields fac-[Mn(PN)(CO)(3)OTf]. Upon reaction of fac-[Mn(PN)(CO)(3)OTf] with MeLi (R' = alkyl) or MeMgCl (R' = aryl), fac-[Mn(PN)(CO)(3)Me] is formed. fac-[Mn(P(Cy)N(Me))(CO)(3)Me] and fac-[Mn(P(Ph)N(Me))(CO)(3)Me] are identified as the best catalysts for the dimerization of phenylacetylene and the hydroboration of 4-chlorostyrene, respectively.