Abstract
The kinetics of electron transfer from mannitol to hexacyanoferrate(III), catalyzed by osmium(VIII), has been studied in alkaline medium. The substrate order is complex, whereas it is one with respect to the catalyst. The rate is independent of the concentration of oxidant. Also, the rate increases with increasing concentration of hydroxide ion in a complex manner. A kinetic rate law corresponding to the proposed mechanism has been suggested as follows:
where [Mtol] is for mannitol. The kinetic parameters have been evaluated and the value of K1 is in agreement with the value determined spectrophotometrically.
Similar content being viewed by others
References
H.H. Willard G.D. Manato (1947) Analyt. Chem. 19 462
V.N. Singh H.S. Singh B.B. Saxena (1969) J. Am. Chem. Soc. 91 2643
B. Krishna H.S. Singh (1966) Z. Phys. Chem. 231 399
V. Lal V.N. Singh H. Singh M.P. Singh (1972) Ind. J. Chem. 10 392
P.C. Pandey V.N. Singh M.P. Singh (1971) Ind. J. Chem. 9 430
U.S. Mehrotra S.P. Mushran (1966) J. Ind..Chem. Soc. 45 526
V.N. Singh N.P. Singh M.P. Singh (1968) Austr. J. Chem. 21 2913
G.C. Soni G.S. Menghani (1977) Tetrahedron. 28 5567
J.S. Mayell (1968) Ind. and Eng. Chem. 7 129
D. Mohan and Y.K. Gupta, J. Chem. Soc. Dalton Trans.,1737 (1975).
Z. Hussein, S.K. Mishra and P.D. Sharma, J. Chem. Soc. Dalton Trans.,89 (1991).
V.K. JindaI, M.C. Agarwal and S.P. Mushran, J. Chem. Soc.,(A) 622 (1971).
VK. Jindal M.C. Agarwal S.P. Mushran (1971) J. Inorg. Nucl.s Chem. 33 2469
N.P. Singh H.S. Singh N.P. Singh (1970) Austr. J. Chem. 23 912
A.D. Mitchell (1923) J. Chem. Soc. 123 2241
A.W. Admson (1952) J. Phys. Chem. 56 858
M. Latshaw (1925) J. Am. Chem. Soc. 47 793
D. Mohan and Y.K. Gupta, J. Chem. Soc. Dalton Trans., 1085 (1977). A.R.A. Binyahia, Ph.D. Dissertation, University of Rajasthan, 1998.
R.W. Ramette (1967) J. Chem. Ed. 44 647
W.P. Griffith, J. Chem. Soc.,245 (1964).
R.D. Sauerbrum F.B. Sandell (1953) J. Am. Chem. Soc. 75 4170
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Sharma, M., Sharma, G., Agrawal, B. et al. Kinetics and mechanism of electron transfer reactions. Osmium(VIII) catalyzed oxidation of mannitol by hexacyanoferrate(III) in aqueous alkaline medium. Transition Met Chem 30, 546–551 (2005). https://doi.org/10.1007/s11243-005-0396-8
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/s11243-005-0396-8