Artículos de revistas
Preparation, Characterization And Electrochemical Studies Of 1,1′-bis(diphenylphosphino)ferrocene (dppf) Derivatives. Crystal Structure Of [dppfco(no)2] [sbf6]
Registro en:
Inorganica Chimica Acta. , v. 266, n. 1, p. 19 - 27, 1997.
201693
2-s2.0-0002570398
Autor
Gerbase A.E.
Vichi E.J.S.
Stein E.
Amaral L.
Vasquez A.
Horner M.
Maichle-Mossmer C.
Institución
Resumen
The neutral dppfFe(NO)2 (1), the novel cationic [dppfCo(NO)2] [SbF6] (2), as well as the dppfFe(CO)3 (3) (dppf=1,1′-bis-(diphenylphosphino)ferrocene) complexes were prepared and characterized. The interaction between the two metallic centers through the dppf ligand was studied in the solid state by 57Fe Mössbauer spectroscopy and in solution by cyclic voltammetry. The Mössbauer parameters are compared with those of other dppfMLn complexes. Electrochemical studies performed on these complexes show the great influence of the MLn moiety on the redox processes of the dppf iron center. The crystal structure of complex 2 was determined (C34H28CoF6FeN2O2P 2Sb). The compound crystallizes in the triclinic, space group P1̄, a = 10.441(2), b= 10.755(2), c= 17.320(5) Å, α = 104.10(2), β = 0.504(10), γ = 111.504(10)°, U= 1744.7(7) Å3, Z = 2, R = 0.0765, wR2 = 0.1878. 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