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Type: Artigo de periódico
Title: Reaction of [Fe-3(CO)(12)] with bidentate phosphines: Redox behavior of products
Author: Stein, E
Fujiwara, FY
Abstract: The reactions of [Fe-3(CO)(12)] with the bidentate phosphines 1,2-bis(diphenylphosphino)ethane (dppe), 1,4-bis(diphenylphosphino)butane (dppb), 1,1'-bis(diphenylphosphino)ferrocene (dppf) and 1,4-bis(diphenylphosphino)benzene (dppbz) using trimethylamine N-oxide as decarbonylating agent produce the chelated [Fe-3(CO)(8)(mu-CO)(2)(mu,eta(2)-diphosphine)] and the new series of symmetrical [{Fe,3CO)(9)(mu-CO)(2)}(2)(mu,eta(2)-diphosphine)] and unsymmetrical [Fe-3(CO)(9)(mu-CO)(2)](mu,eta(2)-diphosphine)[Fe(CO)(4)] bridged complexes, in reasonable yield. The complexes were characterized by IR, P-31 and C-13 NMR spectroscopy, and elemental analysis. Electrochemical studies on these compounds reveal that the substitution of one or more phosphine ligands for carbon monoxide of [Fe-3(CO)(12)] results in a more cathodic potential for the first reduction peak, but is insensitive to the sigma-donor capabilities of the ligands.
Subject: iron
bridging ligand
Country: Suíça
Editor: Elsevier Science Sa Lausanne
Citation: Journal Of Organometallic Chemistry. Elsevier Science Sa Lausanne, v. 525, n. 41671, n. 31, n. 37, 1996.
Rights: fechado
Identifier DOI: 10.1016/S0022-328X(96)06457-1
Date Issue: 1996
Appears in Collections:Unicamp - Artigos e Outros Documentos

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