期刊
INORGANICA CHIMICA ACTA
卷 386, 期 -, 页码 27-35出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.ica.2012.02.005
关键词
Molybdenum(VI); Schiff base; Crystal structure; Olefin; Homogeneous catalyst; Oxidation
资金
- K.N. Toosi University of Technology research council
The synthesis of two Mo(VI) tetradentate Schiff base complexes derived from 2,2'-dimethylpropylenediamine and aromatic aldehydes, (MoO2{hnaphnptn} (1) and MoO2{salnptn(3-OMe)(2)} (2)) is reported. Full characterization of these complexes was accomplished with elemental analyses, spectroscopic studies (H-1 NMR, IR, and UV-Vis) and X-ray structure analysis. X-ray crystallography studies reveal that these complexes adopt a distorted octahedral six-coordinate configuration formed by tetradentate Schiff base ligand and two binding oxygen atoms. Catalytic performance of the prepared molybdenum complexes for oxidation of different olefins with tert-butyl hydroperoxide was evaluated. These complexes were found to be an efficient and selective catalyst for the homogeneous oxidation of various olefins. MoO2{salnptn(3-OMe)(2)} with a methoxy groups on the salicylidene ring of the ligand promote the effectiveness of the catalyst. (C) 2012 Elsevier B.V. All rights reserved.
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