High Resolution Rotational Analysis of Singlet-Triplet Spectra of Polyatomic Molecules

多原子分子单线态-三线态光谱的高分辨率旋转分析

• 批准号: 9622934
• 负责人: Richard Judge
• 金额: $ 10.27万
• 依托单位: University of Wisconsin-Madison
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1996
• 资助国家: 美国
• 起止时间: 1996-06-01 至 1999-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9622934&HistoricalAwards=false
• 关键词: Resolution; Rotational; Analysis; Singlet; Triplet

The Experimental Physical Chemistry Program supports Richard Judge of the University of Wisconsin-Parkside to continue his high resolution spectroscopic studies of singlet-triplet transitions in silicon difluoride, selenium dioxide, methylene selenide and acetaldehyde. In the first three cases, he will extend earlier work to either higher resolution or higher vibrational levels. In the latter case, he will investigate internal rotation in the excited triplet state. Analysis of the spectra will yield accurate information about the geometry and excited state molecular dynamics. This information will greatly assist in the interpretation of the observed photochemistry. In particular, perturbations uncovered in the analysis of the singlet-triplet spectra will yield valuable information on the disposal of excess energy gained on electronic promotion. Undergraduate students will directly participate in the research either during the analysis or data acquisition.

实验物理化学计划支持威斯康星大学帕克赛德分校的理查德·贾奇继续对二氟化硅、二氧化硒、亚甲基硒和乙醛的单态-三态跃迁进行高分辨率光谱研究。在前三种情况下，他将把早期的工作扩展到更高的分辨率或更高的振动水平。在后一种情况下，他将研究激发三重态的内旋转。对光谱的分析将提供有关几何结构和激发态分子动力学的准确信息。这些信息将极大地帮助解释观察到的光化学现象。特别是，在单重态-三重态光谱分析中发现的微扰将产生关于处理电子促进获得的过剩能量的有价值的信息。本科生将直接参与研究，无论是在分析过程中还是在数据采集过程中。