Specific ion effects at the air/water interface

被引:1177
作者
Jungwirth, P
Tobias, DJ
机构
[1] Acad Sci Czech Republ, Inst Organ Chem & Biochem, CR-16610 Prague 6, Czech Republic
[2] Ctr Biomol & Complex Mol Syst, CR-16610 Prague 6, Czech Republic
[3] Univ Calif Irvine, Dept Chem, Irvine, CA 92697 USA
[4] Univ Calif Irvine, Inst Surface & Interface Sci, Irvine, CA 92697 USA
关键词
D O I
10.1021/cr0403741
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Theoretical and computational results on single ions' clusters and extended interfaces are reviewed including experimental studies and comparison with simulation results of surface tension, surface potentials, heterogeneous chemical processes, photoelectron spectroscopy and surface selective nonlinear spectrocopies. Traditionally, surfaces of aqueous electrolytes are described as inactive and practically devoid of ions. This turns out to hold for hard ions while multiply charged ions are strongly repelled from the surface, but due to strong electrostatic interaction, they tend to structure and broaden the interfacial water layer. However, due to specific ion effects and polarization interactions in particular, soft anions exhibit a propensity for the air/water interface. Similarly, the hydronium cation shows anaffinity for the aqueous surface, albeit primarily due to its specific hydrogen bonding features. It is likely that many more hitherto unexplored effects will be discovered now that the surface propensity of hydronium cations and soft inorganic anions has been established.
引用
收藏
页码:1259 / 1281
页数:23
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