K P Srivastava
Articles written in Journal of Chemical Sciences
Volume 90 Issue 4 August 1981 pp 309-316 Inorganic and Analytical
The complexing ability of vanadyl (V) chloride has been studied with N-2 (4, 5, 6 monosubstituted pyridyl)-N′-substituted thio urea ligands. The VOCl3 has been observed to form the six coordinated, diamagnetic complexes of the type VOCl3·L where L is a bidentate ligand molecule. The ligands are co-ordinated to the vanadium metal through pyridyl nitrogen and thioketo sulphur atoms.
Volume 90 Issue 6 December 1981 pp 527-535 Physical and Theoretical
Production of benzaldehyde has been carried out by vapour phase oxidation of toluene over silica supported ferric molybdate catalyst, at different support/ catalyst ratio. The temperature, concentration of the catalyst and space-velocities were varied over a wide range with each catalyst. The best results were obtained with ferric molybdate (60%) supported on SiO2 at a temperature of 450°C, space velocity 10373±20 litre hour−1 litre−1, air/toluene ratio 610 and volume of the catalyst 20 cc. The yield of benzaldehyde on the basis of toluene reacted is 70·2% per pass, total conversion 34·9% and conversion to benzaldehyde is 24·5%, surface area and pore size structure of the catalyst was determined by gravimetric method using quartz fibre spring technique.
Volume 91 Issue 1 February 1982 pp 15-19 Inorganic and Analytical
Vanadyl (V) chloride forms VOCl3 · L (L is a bidentate ligand molecule) type complexes with 1,5-disubstituted 2,4-dithiobiurets and 1,5-disubstituted-2-thiobiurets in carbon tetrachloride solution. Co-ordinations through sulphur atoms in case of 1,5-diaryl substituted 2,4-dithiobiurets and sulphur and oxygen in case of 1,5-diaryl substituted 2-thiobiurets have been proposed for these complexes.
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