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首页> 外文期刊>The journal of physical chemistry, A. Molecules, spectroscopy, kinetics, environment, & general theory >Rotational structure of water in a hydrophobic environment: Carbon tetrachloride
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Rotational structure of water in a hydrophobic environment: Carbon tetrachloride

机译：疏水环境中水的旋转结构：四氯化碳

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摘要

Infrared spectroscopy has been used to probe the interaction between water and the hydrophobic solvent, carbon tetrachloride. At room temperature, water exists as monomers in carbon tetrachloride, presenting a system for studying the rotational properties of water free of strong hydrogen-bonding. The rotational structure suggests a very anisotropic motion consisting of essentially free rotation about the symmetry axis and highly hindered rotation about the two perpendicular axes of the asymmetric water molecule. The rotational lifetime is significantly shortened relative to gas-phase water. An upper limit of 0.93 ps is deduced from the spectrum. Interaction with carbon tetrachloride also slightly enhances the intensity of the symmetric stretch. The results are compared with results of interactions between water and the cations Li+, Na+, K+, and Cs+. It is concluded that the attractive interaction is between the oxygen of water and the electropositive carbon of carbon tetrachloride.
机译：红外光谱已用于探测水与疏水性溶剂四氯化碳之间的相互作用。在室温下，水以单体形式存在于四氯化碳中，为研究无强氢键的水的旋转特性提供了一个系统。旋转结构显示出非常各向异性的运动，该运动包括围绕对称轴的基本自由旋转和围绕不对称水分子的两个垂直轴的高度受阻旋转。相对于气相水，旋转寿命显着缩短。从该频谱推导出0.93 ps的上限。与四氯化碳的相互作用也略微增强了对称拉伸的强度。将结果与水与Li +，Na +，K +和Cs +阳离子之间的相互作用结果进行比较。可以得出结论，有吸引力的相互作用是在水的氧气和四氯化碳的正电碳之间。

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