Buchner, Richard and Hefter, Glenn (2002) Dielectric Spectroscopy of Cesium Fluoride in Methanol. Journal of Solution Chemistry 31 (7), pp. 521-535.
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Dielec. relaxation spectra have been measured at frequencies up to 20 GHz for CsF solns. in methanol (MeOH); concns. up to about 1 mol-L, temp. 25 °C. Spectra were also obtained for a few concns. of the much less sol. KF. Spectra were also obtained for a few concns. of the much less sol. KF. The data show that CsF forms a solvent shared ion pair (SSIP) in MeOH solns. Detailed consideration of the possible geometries and comparison with earlier conductometric data suggest that the ion pair involves an oriented solvent mol. located at a vertex of one of the coordination sites of the cesium, rather than a conventional SSIP. Solvation nos. of the ions, estd. via the modified Cavell equation, are unrealistically large. This suggests, consistent with the large dielec. decrement and the cond. data, that the ions significantly break down the chain structure of MeOH.
|Institutions:||Chemistry and Pharmacy > Institut für Physikalische und Theoretische Chemie > Chair of Chemistry VI - Physical Chemistry (Solution Chemistry) > PD Dr. Richard Buchner|
|Keywords:||cesium fluoride methanol soln structure dielec relaxation spectra potassium fluoride methanol soln structure dielec relaxation spectra|
|Subjects:||500 Science > 540 Chemistry & allied sciences|
|Refereed:||Yes, this version has been refereed|
|Created at the University of Regensburg:||Yes|
|Deposited On:||12 Jun 2012 10:41|
|Last Modified:||12 Jun 2012 10:41|