Please use this identifier to cite or link to this item: http://nopr.niscair.res.in/handle/123456789/33902
Title: Kinetic and mechanistic study of oxidation of 1,2-propanediol by aqueous alkaline solution of N-bromosuccinimide in the presence of aquachloro-complex of ruthenium(III) as homogeneous catalyst
Authors: Singh, Bharat
Mishra, Sandeep Kumar
Tripathi, Shipra
Keywords: Kinetics;Reaction mechanism;Oxidation;1,2-Propanediol;N-Bromosuccinimide;Ruthenium
Issue Date: Mar-2016
Publisher: NISCAIR-CSIR, India
Abstract: Kinetics of Ru(III) catalysis in oxidation of 1,2-propanediol by N-bromosuccinimide in alkaline media has been studied in presence of mercuric acetate as bromide ions scavenger in the temperature range of 30–45 °C. The reaction follows complex kinetics, being first order with respect to both 1,2-propanediol and Ru(III). First order kinetics with respect to NBS at its lower concentrations shifts to zero order at its high concentrations. Variation of both [OH-] and [KCl] shows a positive effect on the rate of reaction. Negligible effect of addition of succinimide (reduction product of NBS) is observed, while variation of both [Hg(OAc)2] and ionic strength has no effect on rate of the reactions. Various activation parameters are calculated. The products of the reactions have been identified as acetic acid and formic acid. A suitable mechanism in conformity with the kinetic observations is discussed and rate law derived.
Page(s): 277-285
URI: http://hdl.handle.net/123456789/33902
ISSN: 0975-0975(Online); 0376-4710(Print)
Appears in Collections:IJC-A Vol.55A(03) [March 2016]

Files in This Item:
File Description SizeFormat 
IJCA 55A(3) 277-285.pdf304.01 kBAdobe PDFView/Open


Items in NOPR are protected by copyright, with all rights reserved, unless otherwise indicated.