Kinetics of Halogen, Hydrogen, Nitrogen, Sulfur and Oxygen Containing Radicals in the 0.5 to 500 Torr Pressure Range Between 180 and 400 K

大气化学研究的最终目标是 通过数学建模模拟任何复杂的系统， 大气中的化学反应。 结果可能 预测成分变化的能力 由不同的自然条件或 人为污染物的引入。 的分辨率 重要的实际和科学问题需要 获得反应速度的最佳可能值 （动力学常数）的基本步骤，使 大气的化学成分。 这些问题包括： 平流层臭氧层的稳定性， 城市空气中的二次污染物， 任何污染源的排放以及过程 行星大气层的演变，包括 我们自己的星球 这个项目是最困难的项目之一， 大气化学的必要方面-测量 化学过程的反应速率， 自由基，其中大多数是不稳定的，反应性极强 大气中稳定分子的碎片 因为 它们的反应性很强， 浓度，因此只能通过高度 复杂的技术 正是它们的高反应性， 然而，这使他们成为如此积极的参与者， 空气中的化学成分，可以让他们决定 更丰富的物种，如碳氢化合物，二氧化硫， 该项目将测量反应速率， 几个关键的化学过程涉及自由基-自由基和 硫，氮，卤素， 氧气和氢气系统。 这些系统很重要 当代清洁化学品处理方法中的要素 污染的空气。

Research in atmospheric chemistry has the ultimate goal of simulating by mathematical modeling any complex system of coupled chemical reactions in the atmosphere. The result can be the capability of predicting any changes in the composition of the atmosphere resulting from varying natural conditions or the introduction of man-made contaminants. The resolution of important practical and scientific problems requires the acquisition of the best possible values of the reaction speeds (kinetic constants) of the may elementary steps that make up the chemistry of the atmosphere. Among these problems are the stability of the stratospheric ozone layer, the appearance in urban air of secondary pollutants that were not present in the emissions of any contaminating source, and the course of evolution of planetary atmospheres, including the atmosphere of our own planet. This project attacks one of the most difficult, but necessary, aspects of atmospheric chemistry - the measurement of the reaction rates for chemical processes involving free radicals, most of which are unstable and extremely reactive fragments of the stable molecules of the atmosphere. Because they are so reactive, they occur in exceedingly low concentrations and are therefore measurable only by highly sophisticated techniques. It is their high reactivity, however, that makes them such active participants in the chemistry of the air and can allow them to determine the fate of more abundant species, such as hydrocarbons, sulfur dioxide, ozone, etc. The project will measure the reaction rates for several key chemical processes involving radical-radical and radical-molecule interactions in the sulfur, nitrogen, halogen, oxygen and hydrogen systems. These systems are important elements in contemporary approaches to the chemistries of clean and polluted air.