Cyclic voltammetry of 1,1 '-bis(diarylphosphino)metallocenes and their complexes with palladium(II)статья
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Аннотация:Cyclic voltammetry is used to study 1, 1'-bis(diarylphosphino)metallocenes (PP) [M(eta(5)-C5R4PAr2)(2)] (M = Fe; R = H; Ar = Ph, o-MeOC6H4, o-PrOC6H4, C6F5; M = Fe, R = Me, Ar = Ph; M = Ru, Os; R = H, Ar = Ph) and such Pd(II) complexes with these as neutral dichlorides [(PP)PdCl2], dication solvates [(PP)Pd(L)(n)](2+) (L = H2O, MeCN), and dication triphenylphosphines containing metal-Pd bond (PP)Pd(PPh3)](2+). The nature of the metallocene metal atom and aryl substituents at phosphor atoms and the formation of a metal-Pd bond affect redox potentials of these compounds. 1, 1'-bis(Diphenylphosphino)metallocenes [M(eta(5) -C5H4PPh2)(2)] (M = Fe, Ru, Os) feature similar electron-donating properties. Oxidation potentials of Pd(II) complexes can serve as a criterion indicating the formation of a metal-Pd bond.