Diferric Oxo-Bridged Complexes of a Polydentate Aminopyridyl Ligand: Synthesis, Structure and Catalytic Reactivity

Abstract

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.

Department(s)

Chemistry

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)

0340-4285; 1572-901X

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2014 Springer International Publishing, All rights reserved.

Publication Date

01 Sep 2014

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