ATR-FTIR studies of ion–solvent and ion–ion interactions in divalent-metal perchlorate–acetonitrile solutions
- 1 January 1994
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Faraday Transactions
- Vol. 90 (18) , 2697-2701
- https://doi.org/10.1039/ft9949002697
Abstract
The effect of divalent-metal ions on the IR spectrum of acetonitrile has been examined by studying the dependence of the spectral features on concentration for seven divalent-metal-ion perchlorates. Data are reported for both the frequency shifts and molar absorption coefficients of the major bands in acetonitrile which are affected by the presence of a cation in solution. It is shown that ion association plays a major role in determining the magnitude of the frequency shift. Other features discussed include the effect of the combination band in protonated acetonitrile, and the role of metal-ion softness in cation–acetonitrile interactions.Keywords
This publication has 4 references indexed in Scilit:
- Spectrochemistry of solutions. Part 26.—Alkali-metal and alkaline-earth-metal thiocyanates in dimethylformamide and acetonitrile solutions: hot bands, stability constants and thermicity for the formation of inner- and outer-sphere ion pairsJournal of the Chemical Society, Faraday Transactions, 1994
- Attenuated total reflection fourier-transform infrared spectroscopic study of ion–solvent and ion–ion interactions in alkali-metal perchlorate–acetonitrile solutionsJournal of the Chemical Society, Faraday Transactions, 1993
- A study of ion pairing in acetonitrile solutions containing magnesium perchlorate using attenuated total reflection FTIR spectroscopyThe Journal of Physical Chemistry, 1992
- Spectrochemistry of solutions. Part 21.—Inner- and outer-sphere complexes of lithium with thiocyanate in acetonitrile solutionsJournal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases, 1989