POSSIBLE HYDRIDE AND METHIDE TRANSFER REACTIONS: REACTIONS OF Fe(CO)4R-(R = H, CH3) AND W(CO)5R- (R = H, CH3, Cl, Br, I) WITH METAL CARBONYL CATIONS
Titel:
POSSIBLE HYDRIDE AND METHIDE TRANSFER REACTIONS: REACTIONS OF Fe(CO)4R-(R = H, CH3) AND W(CO)5R- (R = H, CH3, Cl, Br, I) WITH METAL CARBONYL CATIONS
Auteur:
Wang, Ping Striejewske, William S. Atwood, Jim D.
Verschenen in:
Journal of coordination chemistry
Paginering:
Jaargang 37 (1996) nr. 1-4 pagina's 141-149
Jaar:
1996-02-01
Inhoud:
Reactions of metal carbonyl cations (M(CO)6+, M = Mn, Re) with hydride-, methide- or halide-containing metal carbonyl anions (Fe(CO)4R-, R = H, Me; W(CO)5R-, R = H, Me, Cl, Br, I) produce products that indicate several mechanisms are operative. Reactions of the halo-tungsten complexes produce neutral, solvated tungsten complexes, W(CO)5(CH3CN) and W(CO)4(CH3CN)2 and M(CO)5X in a reaction that appears to be initiated by decomposition of W(CO)5X-. In contrast, the tungsten hydride and methide complexes react, predominantly, by transfer of the hydride or methide to a carbonyl of the cation at a much faster rate. The iron hydride and methide complexes react by iron-based nucleophilicity involving a two-electron process.