Photochemical Study of Solvated SO2

溶剂化 SO2 的光化学研究

• 批准号: 9550425
• 负责人: Janet Waldeck
• 金额: $ 10.12万
• 依托单位: University of Pittsburgh
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1995
• 资助国家: 美国
• 起止时间: 1995-08-15 至 1996-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9550425&HistoricalAwards=false
• 关键词: Photochemical; Study; Solvated; SO2

The solution phase chemistry of SO2 its reaction with water and other atmospheric constituents, is recognized as a major source of acid rain. Many of the good oxidizing agents formed by gas-phase chemistry in the troposphere, such as O3 and H2O2, do not react with SO2 at a measurable rate unless dissolved in an aqueous environment. A combinatimn of spectroscopic techniques will be used to locate and characterize the electronic energy levels of SO2 in the condensed phase. Intramolecular relaxation following the photoexcitation of SO2 and the rates of product formation will be examined using transient Raman spectroscopy at the University of Rochester and Photoacoustic Calorimetry (PAC) at the University of Pittsburgh. International activities include: developing a graduate-level course, Lasers in Chemistry; and initiating a graduate women's seminar series in conjunction with Carnegie Mellon and Duquesne Universities which will include a formal time for undergraduates to present their research.

SO2的溶液相化学与水和其他大气成分的反应被认为是酸雨的主要来源。 除非在水性环境中溶解，否则在对流层中由气相化学形成的许多良好氧化剂（例如O3和H2O2）在对流层中形成的许多良好氧化剂，例如O3和H2O2。 光谱技术的组合将用于定位和表征在凝结相中SO2的电子能级。 SO2的光激发后分子放松以及产品形成速率将使用罗切斯特大学的瞬态拉曼光谱和匹兹堡大学的光声热量表（PAC）进行检查。 国际活动包括：开发研究生级课程，化学激光；并与卡内基·梅隆（Carnegie Mellon）和杜肯大学（Duquesne Universities）一起发起研究生的研讨会系列，其中包括本科生的正式时间来展示他们的研究。