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Type: Artigo de periódico
Title: (sorbic Acid) Fe(co)2l Complexes With L = Co, P(oph)3, Pph3, And Pet3. Photolytic Preparation, Spectral Properties, And Bonding
Author: Santos E.H.
Stein E.
Vichi E.J.S.
Saitovitch E.B.
Abstract: The (sorbic acid)Fe(CO)2L complexes, with L = CO, P(OPh)3, PPh3 and PEt3, have been prepared by irradiating the corresponding Fe(CO)4L compounds in benzene in the presence of sorbic acid. The Mössbauer spectra are compatible with the structure of a tetragonal pyramid with the iron(0) atom located in the center of the base. The values of the isomer shift, δ, seem to indicate that dπ-Lπ{black star} back bonding is predominant for L = CO, significant for L = P(OPh)3, and negligible for L = PPh3 and PEt3. The order of decrease of the frequencies ν(CO) of the coordinated sorbic acid parallels the order of increase of the σ-donor ability of L. © 1989.
Rights: fechado
Identifier DOI: 10.1016/0022-328X(89)85114-9
Date Issue: 1989
Appears in Collections:Unicamp - Artigos e Outros Documentos

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