Hofmeister series and specific interactions of charged headgroups with aqueous ions

• Published in: Advances in colloid and interface science Vol. 146; no. 1; pp. 42 - 47
• Main Authors: Vlachy, Nina, Jagoda-Cwiklik, Barbara, Vácha, Robert, Touraud, Didier, Jungwirth, Pavel, Kunz, Werner
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 28.02.2009; Elsevier
• Subjects: Chemistry; Colloidal state and disperse state; Computer Simulation; Exact sciences and technology; General and physical chemistry; Hofmeister series; Hydrogen Bonding; Ions - chemistry; Kinetics; Models, Molecular; Molecular dynamics; Solubility; Specific-ion effects; Sulfuric Acid Esters - chemistry; Surface physical chemistry; Surface Properties; Surfactant headgroups; Thermodynamics; Water - chemistry; Molecular dynamics; Surfactant headgroups; Specific-ion effects; Hofmeister series; Water; Prediction; Ions; Review; Surfactant; Sulfates; Chemistry; Hofmeister series specific-ion effects; Alkyl; Carboxylate; Ordering; Affinity
• ISSN: 0001-8686; 1873-3727
• DOI: 10.1016/j.cis.2008.09.010

In this paper, we propose a Hofmeister-like ordering of charged headgroups. To this purpose we review various literature data and complete them with some new experimental and computational results on interactions of ions with alkyl sulfates and carboxylates. We further combine the proposed headgroup ordering with the law of matching water affinities in order to obtain a general description and predictions of ion-headgroup interactions. Examples from colloidal chemistry and from biological systems are provided to illustrate the power of this approach.