本项目拟利用偏振拉曼光谱和一些自己发展的偏振拉曼光谱分析方法，研究有机物/无机盐/水三体混合溶液的微观结构和动力学。通过系统地分析二体混合溶液和三体混合溶液的光谱差别，以及浓度、温度对溶液光谱的影响，结合量子化学计算和分子动力学模拟，获取三体混合溶液中复杂的分子间相互作用，以及这些相互作用对溶液微观结构的影响。项目将着重研究水溶液中有机物和离子的相互作用、离子对有机物-有机物相互作用的调控，以及不同离子在这些相互作用中的差别。通过本项目的研究，希望可以给出三体混合溶液中复杂的分子相互作用及其微观结构的物理化学图像。

In this proposal, we use polarized Raman spectroscopy and some novel Raman spectral analyses to study the micro- structure and dynamics of organic compound/non-organic salts/water mixtures. We will systematically compare the differences between the Raman spectra of binary and triple mixtures, and also influences of concentration and temperature on the Raman spectra. From these spectral analyses and the help of quantum chemistry calculation and molecular dynamics simulations, we will study the complex inter-molecular interactions and the micro-structures. Especially, we will study the interactions between organic compounds and ions, and how the ions control the inter-molecule interactions in organic compounds, and the differences of the inter-molecule interactionsions for different ions. Through this proposal, we hope to understand the complex intermolecular interactions and the micro-structures in some triple-mixture solutions.