Epoxidation of olefins catalyzed by novel Mn(III) and Mo(IV) Salen complexes immobilized on mesoporous silica gel: Part I. Synthesis and characterization of homogeneous and immobilized Mn(III) and Mo(IV) Salen complexes |
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| Institution: | 1. University of Leipzig, Faculty of Chemistry and Mineralogy, Institute of Technical Chemistry, Linnéstr. 3, D-04103 Leipzig, Germany;2. University of Leipzig, Faculty of Chemistry and Mineralogy, Institute of Analytical Chemistry, Linnéstr. 3, D-04103 Leipzig, Germany;1. Department of Chemistry, Faculty of Science, Shahid Bahonar University of Kerman, Kerman, Iran;2. Departamento de Química Inorgánica, Universidade de Vigo, Facultade de Química, Edificio de Ciencias Experimentais, 36310 Vigo, Galicia, Spain;3. FriMat, University of Fribourg, Chemin du Musée 6, CH-1700 Fribourg, Switzerland;4. Department of Chemistry, University of Fribourg, Chemin du Musée 9, CH-1700 Fribourg, Switzerland;1. Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee 247667, India;2. Departamento de Química Fundamental, Universidade da Coruña, Campus de A Zapateira, 15071 A Coruña, Spain;1. Department of Chemistry, Alzahra University, PO Box 1993891176, Tehran, Iran;2. Department of Chemistry, University of Otago, PO Box 56, Dunedin 9054, New Zealand;1. Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee 247667, India;2. Departamento de Química Fundamental, Universidade da Coruña, Campus de A Zapateira, 15071 A Coruña, Spain;1. Chemical Physics, Department of Chemistry, Lund University, P.O. Box 124, SE-22100 Lund, Sweden;2. Institute of Chemistry, Department of Inorganic Chemistry, University of Graz, Schubertstraße 1, 8010 Graz, Austria;3. Department of Chemistry, P.O. Box 35, University of Jyväskylä, FI-40014 Jyväskylä, Finland;4. Inorganic Materials Chemistry Research Group, Laboratory of Materials Chemistry and Chemical Analysis, Department of Chemistry, University of Turku, 20014 Turku, Finland |
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| Abstract: | New ways of the covalent immobilization of Mn(III) and Mo(IV) Salen complexes on a mesoporous silica support to produce a stable heterogeneous catalyst for epoxidation reactions are reported. Peptide and ester interactions were employed to anchor the metal Salen complex on the organo-modified silica framework. Electrospray MS, FTIR, TGA, ICP-OES and elemental analysis were used for quantitative and qualitative analyses of the immobilized Salen complexes. The results confirm the location of the metal Salen complex inside the mesopores covalently attached to the silica framework. |
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