Solution Photoreactivity of Atmospheric Molecules

大气分子的溶液光反应性

• 批准号: 9306485
• 负责人: John Simon
• 金额: $ 42.3万
• 依托单位: University of California-San Diego
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1993
• 资助国家: 美国
• 起止时间: 1993-08-01 至 1996-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9306485&HistoricalAwards=false
• 关键词: Solution; Photoreactivity; Atmospheric; Molecules

9306485 Simon In this project in the Experimental Physical Chemistry program of the Chemistry Division, John Simon will apply a variety of experimental techniques to investigate the photochemistry of chlorine oxides and nitrogen oxides in solution in order to determine information about their gas-phase behavior. The photodynamics will be followed by time-resolved electronic and infrared absorption as well as electronic emission. Samples will be examined in polar and inert nonpolar solvents as well as in optically transparent glasses. The PI will interact with scientists at other research institutions in order to develop a more complete understanding of the photoreactivity of these species. %%% Many chemical reactions give different products when they take place in a liquid phase than the same reactions do in the gas phase. This work will help determine the effect of solvents on chemical reactivity. These solution-phase studies will also offer a means of determining in a controlled manner the chemical behavior of atmospherically important chemicals under the influence of light source such as the sun. As a result of these investigations our understanding of tropospheric and stratospheric photochemical processes will be enhanced. ***

9306485 Simon 在化学系实验物理化学项目的这个项目中，John Simon 将应用各种实验技术来研究溶液中氯氧化物和氮氧化物的光化学，以确定有关其气相行为的信息。 光动力学之后将进行时间分辨的电子和红外吸收以及电子发射。 样品将在极性和惰性非极性溶剂以及光学透明玻璃中进行检查。 PI 将与其他研究机构的科学家进行互动，以便更全面地了解这些物种的光反应性。 %%% 许多化学反应在液相中发生时产生的产物与在气相中发生的相同反应产生的产物不同。 这项工作将有助于确定溶剂对化学反应性的影响。 这些溶液相研究还将提供一种以受控方式确定大气中重要化学物质在太阳等光源影响下的化学行为的方法。 这些研究的结果将增强我们对对流层和平流层光化学过程的理解。 ***