Combined Infrared and EPR Studies of Photochemically Generated Free Radicals in Low-Temperature Solids

在这个由国际项目司共同资助的项目中， 物理化学实验课程 犹他州大学的查尔斯·怀特教授将 与E合作。Y.年化学物理研究所的米索奇科说， 俄罗斯切尔诺戈洛夫卡。 在这个程序傅里叶变换红外 （FTIR）和电子顺磁共振（EPR）光谱将被 用于研究F和H原子的光化学反应， 低温基质中的分子。 的专门知识 调查人员是互补的，怀特负责FTIR 实验和米索奇科的EPR。 通过此次合作， 研究人员将能够制定一个全面的描述热 原子迁移率、热化原子扩散和原子-分子 在低温的限制性环境中发生的反应 固体 在非常低的温度下，固体“惰性气体”基质的薄层是 用于容纳高活性或瞬变化学品理想载体 这样就可以用一种叫做矩阵的技术来研究它们 分离光谱学 使用这种技术， 许多发生的化学变化可以被解开和检查。 这种反应的实例是聚合，爆炸分解， 和燃烧。 通过这种国际合作， 一名俄罗斯和一名美国调查员的补充资源将被 结合起来，以产生这些类型的过程更完整的图片 比任何一位科学家单独工作所能获得的都要多。

In this project jointly funded by the Division of International Programs and the Experimental Physical Chemistry Program of the Chemistry Division, Professor Charles Wight of the University of Utah will collaborate with E. Y. Misochko of the Institute of Chemical Physics in Chernogolovka, Russia. In this program Fourier Transform infrared (FTIR) and electron paramagnetic resonance (EPR) spectroscopies will be used to study photochemical reactions of F and H atoms with simple molecules in low-temperature matrices. The expertise of the investigators is complementary, with Wight responsible for the FTIR experiments and Misochko for the EPR. Through this collaboration these researchers will be able to formulate a comprehensive description of hot atom mobility, diffusion of thermalized atoms, and atom-molecule reactions that occur in the restrictive environment of low-temperature solids. Thin layers of solid `noble gas` matrices at very low-temperatures are an ideal vehicle for containing highly reactive or transient chemical species so that they can be studied using a technique called matrix isolation spectroscopy. Using this technique the mechanisms by which a number of chemical transformations occur can be unravelled and examined. Examples of such reactions are polymerization, explosive decomposition, and combustion. Through this international collaboration, the complementary resources of a Russian and an American investigator will be combined to produce a more complete picture of these types of processes than might be obtained by either scientist working alone.