A kinetic and mechanistic study on the silver(I) catalyzed oxidation of l-Serine by cerium(IV) in sulfuric acid medium

作者: T. Sumathi , P. Shanmugasundaram , G. Chandramohan

DOI: 10.1016/J.JSCS.2011.03.011

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摘要: Abstract The kinetics and mechanism of Ag(I) catalyzed oxidation l -Serine by cerium(IV) in sulfuric acid media has been investigated titrimetric technique redox the temperature range 293–308 K. reaction was first order with respect to serine, inverse Ce(IV) a positive fractional Ag(I). Increase [H+] decreased rate. added SO 4 2 - rate reaction. Under experimental conditions, kinetically active species cerium found be Ce(SO4)2. major product serine identified as glycoldehyde which is confirmed IR spectrum corresponding hydrazone. nitrogen atmosphere, system can initiate polymerization acrylonitrile, indicating generation free radicals. On basis results, suitable proposed. constants determining step together activation parameters were evaluated.

参考文章(24)
A. McAuley, C. H. Brubaker, The ceric ion oxidation of mandelic acid and α-hydroxybutyric acid Journal of The Chemical Society A: Inorganic, Physical, Theoretical. pp. 960- 962 ,(1966) , 10.1039/J19660000960
S.A. Chimatadar, T. Basavaraj, S.T. Nandibewoor, Ruthenium(III) Mediated Cerium(IV) Oxidation of Thallium(I) in Aqueous Sulphuric Acid--A Kinetic and Mechanistic Study Inorganic Reaction Mechanisms. ,vol. 4, pp. 209- 219 ,(2002) , 10.1080/1028662021000062563
Lawrence J. Heidt, Maynard E. Smith, Quantum Yields of the Photochemical Reduction of Ceric Ions by Water and Evidence for the Dimerization of Ceric Ions Journal of the American Chemical Society. ,vol. 70, pp. 2476- 2481 ,(1948) , 10.1021/JA01187A050
Don. Kolp, Henry C. Thomas, Rates of Water Oxidation in Ceric Perchlorate Solutions Journal of the American Chemical Society. ,vol. 71, pp. 3047- 3049 ,(1949) , 10.1021/JA01177A030
R. N. Mehrotra, S. Ghosh, Kinetic Study of the Oxidation of Fructose by Ceric Sulphate in Aqueous Sulphuric Zeitschrift für Physikalische Chemie. ,(1966) , 10.1515/ZPCH-1966-23113
Erwin Chargaff, David B. Sprinson, STUDIES ON THE MECHANISM OF DEAMINATION OF SERINE AND THREONINE IN BIOLOGICAL SYSTEMS Journal of Biological Chemistry. ,vol. 151, pp. 273- 280 ,(1943) , 10.1016/S0021-9258(18)72137-6
Martin L. Minthorn, George A. Mourkides, Roger E. Koeppe, The metabolism of D- and L-serine in the rat. Journal of Biological Chemistry. ,vol. 234, pp. 3205- 3209 ,(1959) , 10.1016/S0021-9258(18)69650-4
G.B. Nadkarni, Bernice Friedmann, Sidney Weinhouse, Gluconeogenesis from Glycine and Serine in the Rat Journal of Biological Chemistry. ,vol. 235, pp. 420- 425 ,(1960) , 10.1016/S0021-9258(18)69539-0
Shivamurti A. Chimatadar, Sangappa B. Koujalagi, Sharanappa T. Nandibewoor, Osmium(VIII) mediated oxidation of mercury(I) by cerium(IV) in aqueous sulphuric acid – a kinetic and mechanistic study Transition Metal Chemistry. ,vol. 26, pp. 241- 245 ,(2001) , 10.1023/A:1007178809542