Real-time measurement of the orientational dynamics of aqueous solvation shells in bulk liquid water

被引：60

作者：

Kropman, MF ^{[1
]}

Nienhuys, HK ^{[1
]}

Bakker, HJ ^{[1
]}

机构：

[1] FOM, Inst AMOLE, NL-1098 SJ Amsterdam, Netherlands

来源：

PHYSICAL REVIEW LETTERS | 2002年 / 88卷 / 07期

关键词：

D O I：

10.1103/PhysRevLett.88.077601

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present a study of the orientational dynamics of aqueous solvation shells of halogenic anions in bulk water solution with femtosecond two-color midinfrared spectroscopy. These orientational dynamics have time constants between 2.5 and 12 ps, depending on the type of anion and the temperature. We find that the solvation shell of the larger ion I- shows faster dynamics than that of the smaller ions Cl- and Br-.

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页数：4

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