Vibrational Potential Energy Surfaces and Molecular Structures in Electronic Excited States

在这个项目中的物理化学程序的化学 得克萨斯大学化学系的Jan Laane教授说， 大学将进行调查，以确定 激发电子态的振动势能面。的 采用的实验技术包括荧光激发 光谱、敏化磷光光谱和双光子 超音速喷射冷却分子的光谱学。 系统物种 包括环状和多环分子，以及具有内部 旋转或反转，包括各种羰基化合物和“双 分子，即，有两个紧密相连的电子态。 远 红外和拉曼光谱也将被记录，以帮助 基态电子势能的确定 面 从分子水平理解分子的性质和行为 取决于对势能面的准确了解， 分子的基态和激发电子态。 研究 在本项目中进行的研究将提供必要的数据和分析， 走向这种理解。

In this project in the Physical Chemistry program of the Chemistry Division, Professor Jan Laane of the Chemistry Department of Texas A&M University will pursue investigations in order to determine the vibrational potential energy surfaces of excited electronic states. The experimental techniques to be employed include fluorescence excitation spectroscopy, sensitized phosphorescence spectroscopy, and two-photon spectroscopy of supersonic jet-cooled molecules. The system species include cyclic and multicyclic molecules, and those with internal rotations or inversions, including various carbonyl compounds and `double molecules`, i.e., those with two closely lying electronic states. Far infrared and Raman spectra will also be recorded in order to help with the determination of the ground electronic state potential energy surface. Molecular-level understanding of molecular properties and behavior depends upon accurate knowledge of the potential energy surfaces of a molecule for its ground and excited electronic states. The research conducted in this project will furnish the requisite data and analyses toward this understanding.