Reactions of the dicarbonyl substituted cyclopentadienyl nitrosyl manganese complex cation [(π-C5H4)Mn(NO)(CO)2]+ with some nitrogen and phosphorus donor ligands

Abstract

The syntheses of monocationic complexes, [(π-C-H₄R)Mn(NO)L₂]⁺, [(π-C₅H₄R)Mn(NO)LL′]⁺, and [(π-C₅H₄R)-Mn(NO)(N–N)]⁺[R = H or Me, L =γ-picoline, PMe₂Ph, PPh₃, or P(OPh)₃, L = CO and L′= P(OPh)₃ or PPh₃, or L =γ-picoline and L′= P(OPh)₃ or PPh₃, and where N–N =α,α′-bipyridyl, o-phenanthroline, or N-(2-pyridylmethylene)-p-toluidine] by reaction of [(π-C₅H₄R)Mn(NO)(CO)₂][PF₆] with these ligands is described. The reactions with α-picoline, and the use of triethylamine as a catalyst in the formation of the phosphine complexes, are reported. Treatment of [(π-C₅H₄R)Mn(NO)(CO)₂]⁺ with triethylamine in acetone in the absence of other ligands gives [(π-C₅H₄R)Mn(NO)(CO)]₂.