Ion association
In chemistry, ion association is a chemical reaction whereby ions of opposite electric charge come together in solution to form a distinct chemical entity.[1][2] Ion associates are classified, according to the number of ions that associate with each other, as ion pairs, ion triplets, etc. Intimate ion pairs are also classified according to the nature of the interaction as contact, solvent-shared or solvent-separated. The most important factor to determine the extent of ion association is the dielectric constant of the solvent. Ion associates have been characterized by means of vibrational spectroscopy, as introduced by Niels Bjerrum, and dielectric-loss spectroscopy.[3][4]
- ^ Davies, C. W. (1962). Ion Association. London: Butterworths.
- ^ Wright, Margaret Robson (2007). "Chapter 10: concepts and theory of non-ideality". An introduction to aqueous electrolyte solutions. Wiley. ISBN 978-0-470-84293-5.
- ^ Untersuchungen über Ionenassoziation. I. Der Einfluss der Ionenassoziation auf die Aktivität der Ionen bei Mittleren Assoziationsgraden
- ^ Earley, J. D.; Zieleniewska, A.; Ripberger, H. H.; Shin, N. Y.; Lazorski, M. S.; Mast, Z. J.; Sayre, H. J.; McCusker, J. K.; Scholes, G. D.; Knowles, R. R.; Reid, O. G. (2022-04-14). "Ion-pair reorganization regulates reactivity in photoredox catalysts". Nature Chemistry. 14 (7): 746–753. Bibcode:2022NatCh..14..746E. doi:10.1038/s41557-022-00911-6. ISSN 1755-4349. PMID 35422457. S2CID 248152234.