Crystal structure of an unsymmetrical Schiff base, immobilization of its cobalt and manganese complexes on a silica support, and catalytic studies |
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Authors: | Damla Durak Anıl Delikanlı Cahit Demetgül İbrahim Kani Selahattin Serin |
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Affiliation: | 1. Department of Chemistry, Faculty of Science and Letters, ?ukurova University, 01330, Adana, Turkey 2. Department of Chemistry, Faculty of Science and Letters, Mustafa Kemal University, 31040, Hatay, Turkey 3. Department of Chemistry, Faculty of Science, Anadolu University, 26470, Eskisehir, Turkey
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Abstract: | An unsymmetrical tetradentate Schiff base (H2L) was synthesized by the reaction of 3-methoxysalicylaldehyde, o-phenylenediamine, and salicylaldehyde in EtOH. H2L was characterized by single-crystallographic X-ray analysis. Its Co(II) and Mn(III) complexes ([CoL] and [MnLCl]) were prepared and immobilized on 3-aminopropyltriethoxysilane functionalized silica gel. The immobilized materials were found to be efficient catalysts for epoxidation of styrene in the presence of tert-BuOOH in acetonitrile at 40 °C. The catalysts can be reused several times without significant loss of performance. |
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