Abstract
The association of thallium acetate ion in 2,2,2-trifluoroethanol and dimethyl-sulfoxide has been investigated by thallium-205 NMR spectroscopy. Analysis of the association constants as a function of temperature indicates that in trifluoroethanol the association enthalpy and entropy are, respectively, 1.6 kcal-mol−1 and 19.3 cal-mol−1-K−1 and in dimethylsulfoxide they are-0.99 kcal-mol−1 and 18.0 cal-mol−1-K−1. Examination of the temperature dependence of the chemical shift of the ion-pair reveals that in dimethylsulfoxide the ion-pair exists as a contact species, while in trifluoroethanol the solvent-separated ion-pair is more likely.
Similar content being viewed by others
References
J. F. Hinton and K. R. Metz,J. Solution Chem. 9, 197 (1980).
R. W. Briggs, K. R. Metz, and J. F. Hinton,J. Solution Chem. 8, 479 (1979).
T. B. Reddy,Pure & Appl. Chem. 25, 459 (1971).
D. F. Evans, J. A. Nadas, and M. A. Matesich,J. Phys. Chem. 75, 1708 (1971).
J. O'M Bockris and A. K. Reddy,Modern Electrochemistry, Vol. 1, (Plenum Press, New York, 1970).
J. F. Hinton and R. W. Briggs,J. Magn. Resonance 19, 393 (1975).
L. M. Makherjee and E. Grunwald,J. Phys. Chem. 62, 1311 (1958).
R. T. M. Bicknell, K. G. Lawrence, and D. Feakins,J. Chem. Soc. Faraday I 637 (1980).
S. Ahrland,Pure & Appl. Chem. 51, 2019 (1979).
J. J. Dechter and J. I. Zink,J. Am. Chem. Soc. 97, 2937 (1975).
L. S. Smith, E. E. Tucker, and S. D. Christian,J. Phys. Chem. 85, 1120 (1981).
B. G. Cox and W. E. Waghorne,Chem. Soc. Rev. 9, 381 (1980).
R. P. Bell and J. H. B. George,Trans. Faraday Soc. 49, 619 (1953).
V. S. K. Nair and G. H. Nancollas,J. Chem. Soc. 318 (1957).
L. G. Ailen and A. E. Martell,Stability Constants of Metal Ion Complexes, Supplement No. 1 Special Publication No. 25 (The Chemical Society, London, 1971).
P. J. Krueger, R. W. Matthews, I. D. Cresshull, and D. G. Gilles,J. Chem. Soc. Dalton, 132 (1981).
S. Hafner and N. H. Nachtrieb,J. Chem. Phys. 40, 2891 (1964).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Turner, G.L., Hinton, J.F. & Millet, F.S. A thallium-205 NMR study of thallium acetate ion association in 2,2,2-trifluoroethanol and dimethylsulfoxide. J Solution Chem 11, 379–386 (1982). https://doi.org/10.1007/BF00649036
Received:
Revised:
Issue Date:
DOI: https://doi.org/10.1007/BF00649036