Chemoselective alkane oxidations by reactive superoxovanadium(V) species in vanadosilicate molecular sieves
| Title | Chemoselective alkane oxidations by reactive superoxovanadium(V) species in vanadosilicate molecular sieves |
| Publication Type | Conference Paper |
| Year of Publication | 2007 |
| Authors | Srinivas, D, Ratnasamy, P |
| Editor | Xu, R, Gao, Z, Chen, J, Yan, W |
| Conference Name | From ZEOLITES to Porous Mof Materials: The 40th Anniversary of International ZEOLITE Conference, Proceedings of The 15th International ZEOLITE Conference |
| Date Published | AUG |
| Publisher | Elsevier Science BV |
| Conference Location | Sara Burgerhartstraat 25, Po Box 211, 1000 AE Amsterdam, Netherlands |
| ISBN Number | 978-0-444-53068-4 |
| Abstract | Unlike their titanium analogs, vanadosilicate molecular sieves catalyze the oxidation of the terminal (primary) C-H bonds in paraffins. This dissimilarity is attributed to differences in the type of reactive superoxo species generated on contact with oxidant. The latter were identified and characterized by in situ EPR and DRUV-vis spectroscopic techniques. By a suitable choice of silicate structure (VS-1 or V-MCM-41), solvent and oxidant (H(2)O(2), tert.-butyl hydroperoxide or H(2)+O2()), the V-O bond covalency and mode of O-O bond cleavage in the oxo-species and thereby, the chemoselectivity in the oxidation of the terminal carbon atoms in paraffins could be controlled. |
Divison category:
Catalysis and Inorganic Chemistry