Diferric Oxo-Bridged Complexes of a Polydentate Aminopyridyl Ligand: Synthesis, Structure and Catalytic Reactivity
The catalytic reactivity of a group of diferric oxo-bridged complexes (1-3) of a tetradentate ligand (bpmen = N,N'-dimethyl-N,N'-bis(2-pyridylmethyl)-1,2-diaminoethane) toward alkane hydroxylation has been evaluated. Among the three complexes, the µ-oxo diiron(III) complex [Fe(bpmen)(µ-O)FeCl3] (1) has been synthesized for the first time. The complex 1 has been characterized by spectroscopic analysis and X-ray crystallography. At room temperature, the µ-oxo diiron(III) complexes 1-3 have been found to be useful catalysts in hydroxylation of alkanes with m-chloroperbenzoic acid as oxidant. [Fe(bpmen)(µ-O)FeCl3] (1) has been found to be the most active catalyst. Moreover, the catalytic ability of the complexes in the oxidation of alcohols to ketones with hydrogen peroxide at room temperature has also been investigated.
A. Kejriwal et al., "Diferric Oxo-Bridged Complexes of a Polydentate Aminopyridyl Ligand: Synthesis, Structure and Catalytic Reactivity," Transition Metal Chemistry, vol. 39, no. 8, pp. 909-915, Springer International Publishing, Sep 2014.
The definitive version is available at https://doi.org/10.1007/s11243-014-9875-0
Keywords and Phrases
Catalysts; Catalytic oxidation; Chelation; Crystallography; Hydroxylation; Ketones; Ligands; Paraffins; Spectroscopic analysis; Synthesis (chemical); X ray crystallography; Active catalyst; Alkane hydroxylations; Catalytic ability; Catalytic reactivity; M-chloroperbenzoic acid; Oxidation of alcohols; Room temperature; Tetradentate ligands; Iron compounds
International Standard Serial Number (ISSN)
Article - Journal
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01 Sep 2014