Solvation spectra. Part 11.—Cation dependence of the ultra-violet absorption spectra of iodide ions in solvents of low polarity
- 1 January 1966
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Transactions of the Faraday Society
- Vol. 62, 286-295
- https://doi.org/10.1039/tf9666200286
Abstract
The energies and temperature coefficients of the first ultra-violet absorption maxima for iodides in solvents of low polarity are interpreted in terms of ionic association. The band-energies correlate well with the Z-values of the solvents, except for carbon tetrachloride. Variation of the spectra with iodide concentration allows in one instance evaluation of the dissociation constant for the ion-pair. Competition experiments using added perchlorates lead to the determination of relative affinities of certain univalent cations for iodide.Keywords
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