Journal
SUPRAMOLECULAR CHEMISTRY
Volume 24, Issue 3, Pages 149-156Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/10610278.2011.636445
Keywords
Keggin; polyoxometalates; manganese-substituted phosphotungstate; hybrid material; oxidation; catalysis
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Funding
- Department of Science and Technology, New Delhi [SR/S1/IC-13/2007]
- Council of Industrial and Scientific Research (CSIR, New Delhi)
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A new inorganic-organic hybrid material comprising Keggin-type mono manganese-substituted phosphotungstate and salen was synthesised. The synthesised hybrid material was systematically characterised by various physicochemical techniques such as elemental analysis, thermal gravimetric analysis, FT-IR, UV-vis, electron spin resonane, H-1 NMR, C-13 MAS NMR and P-31 NMR. The catalytic activity was evaluated for non-solvent liquid phase oxidation of styrene using O-2. The novelty of the present work lies in obtaining 42% conversion with 41% selectivity for styrene oxide with O-2 under solvent-free mild reaction conditions only in 4 h.
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