title: Catalytic oxidation of cyclohexane by a binuclear Fe(III) complex biomimetic to methane monooxygenase.
abstract: A novel binuclear Fe(III) complex [Fe(III)(BPMP)Cl(mu-O)Fe(III)Cl3] (1) was prepared from the reaction between (bis(2-pyridylmethyl)-1,4-piperazine) and [Fe(OH2)6]Cl3, in acetonitrile. The title compound was characterized by spectroscopic, electrochemical and X-ray crystallography analysis. The catalytic activity of the complex was evaluated through cyclohexane oxidation, using hydrogen peroxide as the terminal oxidant. Reaction products were identified by gas chromatography. Conversions up to 19.2% were observed (12.6% and 6.6% yields for cyclohexanol and cyclohexanone, respectively). The catalytic activity exhibited by 1 suggests that it can be considered as a functional biomimetic analog to methane monooxygenase.
authors.affiliation: Instituto de Química, Universidade Federal do Rio de Janeiro, CT Bloco A, Lab 641, Cidade Universitária, Rio de Janeiro RJ-21945-970, Brazil.
authors.forename: Maria Carolina
authors.initials: MC
authors.lastname: Esmelindro
authors.forename: Enrique G
authors.initials: EG
authors.lastname: Oestreicher
authors.forename: Heiddy
authors.initials: H
authors.lastname: Márquez-Alvarez
authors.forename: Cláudio
authors.initials: C
authors.lastname: Dariva
authors.forename: Sílvia M S
authors.initials: SM
authors.lastname: Egues
authors.forename: Christiane
authors.initials: C
authors.lastname: Fernandes
authors.forename: Adailton J
authors.initials: AJ
authors.lastname: Bortoluzzi
authors.forename: Valderes
authors.initials: V
authors.lastname: Drago
authors.forename: O A C
authors.initials: OA
authors.lastname: Antunes
mesh_terms: D040761:Biomimetic Materials; D002384:Catalysis; D018360:Crystallography, X-Ray; D003510:Cyclohexanes / Q000737:chemistry*; D004563:Electrochemistry; D058085:Iron Compounds / Q000737:chemistry*; D008024:Ligands; D010084:Oxidation-Reduction; D010105:Oxygenases / Q000737:chemistry* / Q000378:metabolism; D013057:Spectrum Analysis
chemical_list: D003510:Cyclohexanes; D058085:Iron Compounds; D008024:Ligands; D010105:Oxygenases; C021555:methane monooxygenase