The physical origin of hydrophobic effects

被引：49

作者：

Sun, Qiang ^{[1
]}

机构：

[1] Peking Univ, Sch Earth & Planetary Sci, Key Lab Orogen Belts & Crustal Evolut, Minist Educ, Beijing 100871, Peoples R China

来源：

CHEMICAL PHYSICS LETTERS | 2017年 / 672卷

基金：

中国国家自然科学基金;

关键词：

Water; Interface; Hydrogen bonding; Hydrophobic effects; Hydration free energy; SUM-FREQUENCY GENERATION; SCALED-PARTICLE THEORY; WATER-MOLECULES; SINGLE POLYMER; LENGTH SCALES; SPECTROSCOPY; INTERFACES; HYDRATION; SOLUTES;

D O I：

10.1016/j.cplett.2017.01.057

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：

From the structural studies on water and air/water interface, hydration free energy is derived, and used to investigate the origin of hydrophobic effects. As a solute is dissolved into water, hydration free energy increases, and is divided into initial and hydrophobic solvation processes. In the initial process, hydration free energy is dominated by hydrogen bonding in interfacial water (topmost water layer at solute/water interface). For hydrophobic process, hydration free energy is related to the hydrogen bonding in bulk and interfacial water. Therefore, hydrophobic effects originate from the structural competition between hydrogen bonding in bulk water and that in interfacial water.(C) 2017 Elsevier B.V. All rights reserved.

引用

页码：21 / 25

页数：5

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