205TL-NMR and UV-Visible spectroscopic determination of the formation constants of aqueous thallium(I) hydroxo-complexes

P. Sipos, S. G. Capewell, P. M. May, G. T. Hefter, G. Laurenczy, F. Lukács, R. Roulet

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

The hydrolysis of Tl(I) has been studied at 25°C using 205Tl-NMR spectroscopy and UV-Vis spectrophotometry in aqueous solutions with ionic strengths maintained by NaClO4 at 2, 4, 6, and 8M. The formation constant and the spectral characteristics for the hydroxo complex, TlOH° have been determined. At high hydroxide ion concentrations there is clear evidence from the UV-Vis data for the formation of a Tl(OH)2 - species. The spectrum and an estimated formation constant for this second hydroxo complex are also reported.

Original languageEnglish
Pages (from-to)419-431
Number of pages13
JournalJournal of Solution Chemistry
Volume26
Issue number5
Publication statusPublished - May 1997

Fingerprint

Thallium
Spectrophotometry
thallium
Ionic strength
Osmolar Concentration
Nuclear magnetic resonance spectroscopy
Hydrolysis
Magnetic Resonance Spectroscopy
Nuclear magnetic resonance
nuclear magnetic resonance
spectrophotometry
ion concentration
hydroxides
hydrolysis
aqueous solutions
spectroscopy
hydroxide ion

Keywords

  • TL-NMR spectroscopy
  • Concentrated electrolytes
  • Hydroxide
  • Hydroxo complexes
  • Thallium(I)
  • UV-Vis spectrophotometry

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry

Cite this

Sipos, P., Capewell, S. G., May, P. M., Hefter, G. T., Laurenczy, G., Lukács, F., & Roulet, R. (1997). 205TL-NMR and UV-Visible spectroscopic determination of the formation constants of aqueous thallium(I) hydroxo-complexes. Journal of Solution Chemistry, 26(5), 419-431.

205TL-NMR and UV-Visible spectroscopic determination of the formation constants of aqueous thallium(I) hydroxo-complexes. / Sipos, P.; Capewell, S. G.; May, P. M.; Hefter, G. T.; Laurenczy, G.; Lukács, F.; Roulet, R.

In: Journal of Solution Chemistry, Vol. 26, No. 5, 05.1997, p. 419-431.

Research output: Contribution to journalArticle

Sipos, P, Capewell, SG, May, PM, Hefter, GT, Laurenczy, G, Lukács, F & Roulet, R 1997, '205TL-NMR and UV-Visible spectroscopic determination of the formation constants of aqueous thallium(I) hydroxo-complexes', Journal of Solution Chemistry, vol. 26, no. 5, pp. 419-431.
Sipos, P. ; Capewell, S. G. ; May, P. M. ; Hefter, G. T. ; Laurenczy, G. ; Lukács, F. ; Roulet, R. / 205TL-NMR and UV-Visible spectroscopic determination of the formation constants of aqueous thallium(I) hydroxo-complexes. In: Journal of Solution Chemistry. 1997 ; Vol. 26, No. 5. pp. 419-431.
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AU - Capewell, S. G.

AU - May, P. M.

AU - Hefter, G. T.

AU - Laurenczy, G.

AU - Lukács, F.

AU - Roulet, R.

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AB - The hydrolysis of Tl(I) has been studied at 25°C using 205Tl-NMR spectroscopy and UV-Vis spectrophotometry in aqueous solutions with ionic strengths maintained by NaClO4 at 2, 4, 6, and 8M. The formation constant and the spectral characteristics for the hydroxo complex, TlOH° have been determined. At high hydroxide ion concentrations there is clear evidence from the UV-Vis data for the formation of a Tl(OH)2 - species. The spectrum and an estimated formation constant for this second hydroxo complex are also reported.

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