Laser-Based Spectroscopy in the Undergraduate Chemistry Laboratory

本科生化学实验室中的激光光谱学

• 批准号: 9451091
• 负责人: Fred Hadley
• 金额: $ 1.34万
• 依托单位: Rockford College
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1994
• 资助国家: 美国
• 起止时间: 1994-09-01 至 1996-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9451091&HistoricalAwards=false
• 关键词: Laser; Based; Spectroscopy; Undergraduate; Chemistry

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.

9451091哈德利这个项目包括在拉曼光谱，激光荧光和激发状态动力学方面开发几个基于激光的实验，将成为我们本科生物理化学实验室计划的现代化计划的中心。该项目也将对我们的其他上限实验室课程产生有益的影响，包括工具分析和分析化学。 学生将使用脉冲的氮激光器和服务剂设备进行三组实验：1）I2的荧光和吸收光谱，特别注意了状态选择的激发电子和振动状态以及其寿命。 2）CCL4的拉曼和IR研究，其中学生将比较从每种类型的光谱法获得的振动信息并确定键作用。 3）对稀土复合物激发态命运的动态研究，目的是研究荧光淬灭，配体刚度和溶剂粘度对这些络合物的寿命的影响。