Pressure dependence of the large-scale structure of water

被引：14

作者：

Cunsolo, A. ^{[1
]}

Formisano, F. ^{[2
,3
]}

Ferrero, C. ^{[4
]}

Bencivenga, F. ^{[5
]}

Finet, S. ^{[6
]}

机构：

[1] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA

[2] Ctr Ric & Sviluppo SOFT, CNR, INFM, I-00185 Rome, Italy

[3] OGG, F-38043 Grenoble 9, France

[4] European Synchrotron Radiat Facil, F-38043 Grenoble, France

[5] Sincrotrone Trieste, I-34012 Trieste, Italy

[6] Univ Paris 06, CNRS, F-75252 Paris 05, France

来源：

JOURNAL OF CHEMICAL PHYSICS | 2009年 / 131卷 / 19期

关键词：

hydrogen bonds; liquid structure; liquid theory; water; X-ray scattering; X-RAY-SCATTERING; DENSITY-FLUCTUATIONS; LOW-TEMPERATURES; BEHAVIOR; LIQUID; VELOCITY; H2O; D2O;

D O I：

10.1063/1.3259882

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We report on small-angle x-ray scattering measurements on liquid water aimed at characterizing the pressure evolution of its large-scale structure. Diffraction profiles have been fitted assuming a Lorentzian dependence on the exchanged momentum. As a result, we observe an anomalous behavior of the diffracted intensity that tends to disappear, increasing either the pressure or the temperature. This effect is discussed in detail and imputed to the ability of hydrostatic pressure to weaken hydrogen bonds.

引用

页数：5

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