The local structure and dynamics of supercooled water: spectroscopic study

水的许多动力学和热力学性质表现出反常的温度依赖性。这些异常现象被解释为氢键网络的结构化。因此，阐明液态水的局部结构和相应的动力学对于加深我们对水的性质的理解是非常重要的。在这项工作中，水的红外（IR）光谱被用来确定过冷水的局部结构和动力学。利用反胶束（直径1-10微米）中的有限空间，我们能够研究温度范围至230 K的深度过冷水。

Water shows an anomalous temperature dependence of many kinetic and thermodynamic properties. These anomalies have been interpreted by the structurizaton by the presence of hydrogen-bond network. Therefore, it is important to elucidate the local structure and correspondent dynamics of the liquid water to deepen our understanding of the properties of water. In this work, infrared (IR) spectrum of water was used to determine the local structure and dynamics of the supercooled water. Using confined space inreverse micelle (1-10 micron in diameter), we were able to study deeply supercooled water in the temperature range to 230 K.