Reactions Involving Small Molecular Free Radicals

Dagdigian教授得到了 实验物理化学计划，研究化学 交叉分子链中分子片段间的反应 通过分析产品在激光照射下发出的光， 激发 这些研究的动机是为了回答 问题：有许多可能的势能会有什么影响 这些反应发生在能量表面上， 分布的产物分子和能量状态， 他们生产的是什么？ 在这个项目中，涉及分子的反应动力学 自由基将通过实验研究， 使用该方法确定产品内部状态分布 激光荧光检测技术 因为 两种试剂上的未配对电子，这些反应 必然涉及多个势能面。 的 不同表面的影响应体现在 在不同的产品渠道之间进行分支。 的反应 氧原子与振动激发试剂，这将是 通过受激拉曼激发制备，将通过 羟基产物内部分布的测量。

Professor Dagdigian is supported by a grant from the Experimental Physical Chemistry Program to study the chemical reactions between fragments of molecules in crossed molecular beams by analysing the light emitted by the products upon laser excitation. The motivation for these studies is to answer the question: What is the effect of having many possible potential energy surfaces on which these reactions occur on the distribution of product molecules and on the energy states in which they are produced? In this project the dynamics of reactions involving molecular free radicals will be experimentally investigated through the determination of product internal state distributions using the laser fluorescence detection technique. Because of the unpaired electrons on both reagents, these reactions necessarily involve multiple potential energy surfaces. The influence of the different surfaces should be manifest in the branching between different product channels. The reactions of oxygen atoms with vibrationally excited reagents, which will be prepared by stimulated Raman excitation, will be probed through measurement of the hydroxyl product internal distribution.