Summary
The aquation kinetics of [Co(NH3)5Cl]2+ and [Co(NH3)5Br]2+ ions in acetone-water have been investigated over a wide range of solvent compositions and temperatures. The variation of thermodynamic properties of the activated complex with the mole fraction of acetone reveals the existence of specific solvation. The correlation of the rate constant with dielectric constant of the medium is examined and discussed. A reaction mechanism which describes the solvent effect on reaction rate is proposed.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
J. N. Bronsted and R. Livingstone,J. Am. Chem. Soc.,49, 435 (1927).
V. Holba, O. Grancicova,Coll. Czech. Chem. Comm.,44, 495 (1979).
J. Burgess and M. G. Price,J. Chem. Soc. (A), 3108 (1971).
M. J. Blandamer, J. Burgess and R. I. Haines,J. Chem. Soc., Dalton Trans., 607 (1980).
A. Haim and H. Taube,Inorg. Chem.,2, 1199 (1963).
R. G. Pearson and J. W. Moore,Inorg. Chem.,3, 1334 (1964).
D. A. Buckingham, I. I. Olson, A. M. Sargeson and H. Satrapa,Inorg. Chem.,6, 1027 (1967).
C. H. Langford and W. R. Muir,J. Am. Chem. Soc. 89, 3141 (1967).
C. H. Langford,Inorg. Chem.,3, 228 (1964).
V. D. Panasyuk and A. V. Arkharov,Russ. J. Inorg. Chem.,13, 1279 (1968).
J. Burgess,J. Chem. Soc. A, 1899 (1969).
J. Burgess,J. Chem. Soc., Dalton Trans., 825 (1973).
G. Thomas and L. A. P. Kane Maguir,J. Chem. Soc., Dalton Trans., 1688 (1974).
C. H. Langford,Can. J. Chem.,49, 1497 (1971).
N. Elgy and C. F. Wells,J. Chem. Soc., Faraday Trans.,I, 79, 2367 (1983).
E. C. Rochow,Inorg. Synth.,6, 138 (1960).
T. Moeller,Inorg. Synth.,5, 134 (1957).
R. J. Best,J. Agric. Sci.,19, 534 (1929).
M. F. Amira, P. Carpenter and C. B. Monk,J. Chem. Soc., Dalton Trans., 1726 (1980).
R. F. Hudson and B. J. Saville,J. Chem. Soc., 4114 (1955).
H. P. Bennetto and E. F. Caldin,J. Chem. Soc. (A), 2191, 2198, 2207, 2211 (1971).
R. Lumry and S. Rajender,Biopolymers,9, 1125 (1970).
M. M. Elsemongy and M. F. Amira,J. Ind. Chem. Soc.,67, 506 (1980).
G. Akerlof,J. Am. Chem. Soc.,54, 4125 (1932).
G. Akerlof and O. A. Short,J. Am. Chem. Soc.,58, 1241 (1936).
E. S. Amis and Jaffe,J. Chem. Phys.,10, 598 (1942).
V. Holba and O. Grancicova,J. Inorg. Nucl. Chem.,43, 2071 (1981).
E. Grunwald and S. Winstein,J. Am. Chem. Soc.,70, 846 (1948).
S. Winstein, E. Grunwald and H. W. Jones,J. Am. Chem. Soc.,73, 2700 (1951).
W. L. Reynolds, M. Birus and S. Asperger,J. Chem. Soc., Dalton. Trans., 716 (1974).
J. Lewis and R. G. Wilkins,Modern Coordination Chemistry, Interscience, New York, 1960, p. 128.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Amira, M.F., El-Shazly, S.A., Sallam, S.A. et al. Aquation kinetics of chloro- and bromo-pentamminecobalt(III) ions in water-acetone mixtures. Transition Met Chem 12, 25–29 (1987). https://doi.org/10.1007/BF01023124
Received:
Revised:
Issue Date:
DOI: https://doi.org/10.1007/BF01023124