Intermolecular Interactions in Aromatic Systems: The Structure and Dynamics of van der Waals Dimers, Excimers andBicimers

林教授得到了实验研究所的资助。 物理化学计划，研究结构和光谱 货车范德瓦耳斯二聚体、准分子和双聚体（双 激发）的芳烃的目的推导 结构对电子性质的依赖性 状态 实验技术将包括时间和 吸收和/或发射中的能量分辨光谱。一 这些分子间二聚体与 相应的二芳基烷烃，其是它们的分子内 二聚体对应物将提供光谱和时间 可以从中推断出结构特征的特征 和能量的振动跃迁的三个类 分子二聚体 理论研究表明， 分子作为其相对取向的函数将是 结合实验研究， 这些物种的特征。 %%% 实验和理论方法的结合是 希望能让我们了解 二聚体结构对电子态性质的影响 有助于我们理解 这些系统中的能量流和分子间的力， 将这对分子结合在一起。

Professor Lim is supported by a grant from the Experimental Physical Chemistry Program to study the structure and spectra of van der Waals dimers, excimers, and bicimers (doubly excited) of aromatic hydrocarbons for the purpose of deducing the dependence of the structure on the nature of the electronic state. Experimental techniques will include time- and energy-resolved spectra in absorption and/or emission. A comparison of these intermolecular dimers with the corresponding diaryl alkanes which are their intramolecular dimer counterparts will provide spectral and temporal characteristics from which can be deduced structural features and energetics of vibronic transitions for the three classes of molecular dimers. Theoretical studies of the two interacting molecules as a function of their relative orientation will be combined with the experimental studies for a detailed characterization of these species. %%% The combination of experimental and theoretical approaches is expected to lead to an understanding of the dependence of the structure of the dimers on the nature of the electronic state of the hydrocarbon and contribute to our understanding of energy flow in these systems and the intermolecular forces that hold the pair of molecules together.