Origin of ion selectivity at the air/water interface-Reference-Cited by-同舟云学术

Origin of ion selectivity at the air/water interface

Published:2015 Issue:6 Volume:17 Page:4311-4318
ISSN:1463-9076
Container-title:Physical Chemistry Chemical Physics
language:en
Short-container-title:Phys. Chem. Chem. Phys.

Author:

Sun Lu¹²³⁴⁵,Li Xin¹²³⁴⁵,Tu Yaoquan¹²³⁴⁵,Ågren Hans¹²³⁴⁵

Affiliation:

1. Department of Theoretical Chemistry and Biology

2. School of Biotechnology

3. Royal Institute of Technology

4. S-10691 Stockholm

5. Sweden

Abstract

A snapshot of a water droplet consisting of Cs⁺ and I⁻ ions with their hydration structures displayed. I⁻ is hydrated anisotropically and the water–water hydrogen bonds in the first hydration shell are hindered. The anions have quite weak interactions with non-hydrogen-bonded water molecules in the first hydration shell, making it easier for them to leave the site. In contrast, cations obtain more stable hydration shells with an increase in their size.

Publisher

Royal Society of Chemistry (RSC)

Subject

Physical and Theoretical Chemistry,General Physics and Astronomy

Link

http://pubs.rsc.org/en/content/articlepdf/2015/CP/C4CP03338H

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