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Anion bridges drive salting out of a simple amphiphile from aqueous solution

Bowron, DT; Finney, JL; (2002) Anion bridges drive salting out of a simple amphiphile from aqueous solution. PHYS REV LETT , 89 (21) , Article 215508. 10.1103/PhysRevLett.89.215508. Green open access

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Abstract

Neutron diffraction with isotope substitution has been used to determine the structural changes that occur on the addition of a simple salting-out agent to a dilute aqueous alcohol solution. The striking results obtained demonstrate a relatively simple process occurs in which interamphiphile anionic salt bridges are formed between the polar groups of the alcohol molecules. These ion bridges drive an increase in the exposure of the alcohol molecule nonpolar surface to the solvent water and hence point the way to their eventual salting out by the hydrophobic effect.

Type: Article
Title: Anion bridges drive salting out of a simple amphiphile from aqueous solution
Open access status: An open access version is available from UCL Discovery
DOI: 10.1103/PhysRevLett.89.215508
Publisher version: http://dx.doi.org/10.1103/PhysRevLett.89.215508
Language: English
Keywords: SELF-ASSOCIATION, ALCOHOL-WATER, HYDROPHOBIC INTERACTIONS, TERTIARY BUTANOL, NACL SOLUTIONS, TEMPERATURE, DEPENDENCE, HYDRATION, PROTEINS, VOLUMES
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy
URI: https://discovery.ucl.ac.uk/id/eprint/77352
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