Laser-Based Spectroscopy in the Undergraduate Chemistry Laboratory

这个项目包括拉曼光谱、激光荧光和激发态动力学等几个基于激光的实验的发展，将成为我们本科物理化学实验室现代化项目的中心。这个项目也会对我们高年级的实验课程产生有益的影响，包括仪器分析和分析化学。学生将使用脉冲氮激光器和相关设备进行三组实验：1)I2的荧光和吸收光谱，特别注意状态选择的激发态和振动态的性质及其寿命。2) CCl4的拉曼和红外研究，其中学生将比较从每种光谱中获得的振动信息并确定键力。3)稀土配合物激发态命运的动力学研究，目的是研究荧光猝灭、配体刚性和溶剂粘度对这些配合物寿命的影响。

9451091 Hadley This project, which includes the development of several laser- based experiments in Raman spectroscopy, laser fluorescence, and excited-state dynamics, will be at the center of a modernization program in our undergraduate physical chemistry laboratory program. The project will have a beneficial effect on our other upper-division laboratory courses as well, including instrumental analysis and analytical chemistry. Students will perform three sets of experiments using a pulsed nitrogen laser and attendant equipment: 1) The fluorescence and absorption spectrum of I2, with special attention paid to the nature of state-selected excited electronic and vibrational states as well as their lifetimes. 2) A Raman and IR study of CCl4, wherein students will compare the vibrational information derived from each type of spectroscopy and determine bond forces. 3) A dynamic study of the fate of excited states of rare-earth complexes with the intent of studying the effects of fluorescence quenching, ligand rigidity, and solvent viscosity on the lifetimes of these complexes.