Experimental and Theoretical Studies of Molecular Motions in Liquids

Kivelson教授得到了理论科学基金会的资助。 和计算化学程序来研究 液体中的分子，特别是过冷液体， 运动表现出许多反常的性质。 实验 将进行动态光散射测量 连同相关的计算机分子动力学模拟， 结果将与现有数据一起用于 建立分子运动的理论模型， 液体的结构。 基弗森将投入一个主要的 他的一部分研究工作是寻找 随着温度的降低， 过冷液体，以确认存在一个 二阶（或更高）相变。 在另一方面 在他的研究中，Kivelson将研究高频 以笼为特征的液体分子运动 卡嗒卡嗒声和跨越障碍。 %%% 由于大多数化学反应都发生在溶液中， 在化学领域中具有根本的重要性， 从分子水平理解分子运动， 溶质和溶剂之间的相互作用。 Kivelson的研究 包括使用光散射实验和计算机 模拟，以进一步了解这个详细的 分子图像

Professor Kivelson is supported by a grant from the Theoretical and Compuational Chemistry Program to study motions of molecules in liquids, especially supercooled liquids whose motions exhibit many anomalous properties. Experimental dynamic light scattering measurements will be carried out together with relevant computer molecular dynamics simulations, and the results will be used, together with extant data, to develop theoretical models relating the molecular motions to the structure of the liquids. Kivelson will devote a major portion of his research effort to searching for a correlation length which diverges with decreasing temperature for supercooled liquids in an effort to confirm the existence of a second order (or higher) phase transition. In another aspect of his research, Kivelson will study the high-frequency molecular motions in liquids which are characterized by cage rattling and barrier crossing. %%% Since most chemical reactions take place in solution, it is of fundamental importance in the field of chemistry to have a molecular level understanding of molecular motion and the interaction between solute and solvent. Kivelson's research involves the use of light scattering experiments and computer simulation to further our understanding of this detailed molecular picture.