92786-96-4Relevant academic research and scientific papers
Reactions of the cationic rhenium aryldiazenido complexes [(η-C5H5)Re(CO)2(N2Ar)] + and [(η-C5Me5)Re(CO)2(N2Ar)] +. Monocarbonyl derivatives with halide, isocyanate, carbamoyl (carboxamido), and alkoxycarbonyl ligands
Barrientos-Penna, Carlos F.,Klahn-Oliva, A. Hugo,Sutton, Derek
, p. 367 - 373 (2008/10/08)
Reactions of the dicarbonylrhenium aryldiazenido cations [CpRe(CO)2(N2Ar)]+ (1) and [Cp*Re-(CO)2(N2Ar)]+ (2) (Cp = η-C5H5, Cp* = η-C5Me5, Ar = aryl) with some nucleophiles are described, leading to monocarbonyl aryldiazenido complexes of the general type CpReX(CO)(N2Ar) and Cp*ReX(CO)(N2Ar), with X = Cl, Br, I, NCO, CO2R (R = alkyl), CONH2, CONHMe, and CONMe2. Some examples of analogous reactions of the manganese complex [MeCpMn(CO)2(N2Ar)]+ (MeCp = η-C5H4Me) are also included. Solid-state or solution reactions of 1 or 2 with alkali halides are quite dependent on the experimental conditions, the halide, and the η5-arene. Under appropriate conditions all examples of CpReX(CO)(N2Ar) and Cp*ReX(CO)(N2Ar) with X = Cl, Br, or I can be isolated, but CpRe(CO)2(N2), CpRe(CO)2X2 (X = Br, I), and Cp*Re(CO)2X2 (X = Br, I) may also be formed. The isocyanate complexes CpRe(NCO)(CO)(N2Ar) and Cp*Re(NCO)(CO)(N2Ar) are formed from 1 or 2 with NCO-, N3-, or N2H4. Alkoxycarbonyl complexes CpRe(CO2R)(CO)(N2Ar) and Cp*Re(CO2R)(CO)(N2Ar) are formed by using OMe- or [HB(OCHMe2)3]- and carbamoyl complexes CpRe(CONR2)(CO)(N2Ar) or Cp*Re(CONR2)(CO)(N2Ar) (R2 = H2, HMe, Me2) by using NH3, MeNH2, or Me2NH. Where similar manganese complexes form, they are generally much less stable than the rhenium ones, and the tendency to form the dinitrogen complex MeCpMn(CO)2(N2) in the manganese reactions is much greater.
