Metallorganische Lewis-Saeuren. XXXVII. Kationische Pentacarbonyl(phosphan)rhenium-komplexe und deren Reactionen mit Nucleophilen

Article abstract of DOI:10.1016/0022-328X(89)87258-4

The raections of pentacarbonyltetrafluoroboratorhenium, (OC)5ReFBF3, with PH3, PPh3, PPh2H, and chlorphosphanes lead to cationic complexes <(OC)5RePR3>⁺BF4^- (1).Nucleophiles react with the chlorphosphane ligands of 1 to give the ionic complexes <(OC)5RePr3-nR'n>⁺BF4^- (R'=OH, OMe, OEt).Reaction of <(OC)5RePPh2Cl>⁺BF4^- with OH^- yields the bridged <(OC)5ReP(Ph)2-O-(Ph)2PRe(CO)5>²⁺2BF4^-, whereas with <(OC)5RePEt2Cl>⁺BF4^- and OH^- the complex <(OC)RePEt2OH>⁺BF4^- is formed.The azide ion is added to a cis-carbonyl ligand of <(OC)5RePPh2Cl>⁺BF4^- to form the neutral isocyanato complex (OC)4(ClPh2P)ReNCO.The hydroxycarbonyl complexes cis-(OC)4Re(PPh2R)(COOH) are obtained from the reaction of <(OC)5RePPh2R>⁺BF4^- (R=Ph, H) with hydroxide.The reactions of <(OC)5ReL>⁺ with M(CO)5^- (L=PPh3, P(OMe)3, CN-tBu; M=Mn, Re) give the nonacarbonyl dimetal compounds L(OC)4Re-M(CO)5.