The Effect of Molecular Orientation Geometry Upon Associative Activated Desorption

该项目属于分析和表面的一般领域 化学和气体表面反应动力学领域。 该研究项目将调查一个人与另一个人之间的力量。 双原子分子和表面，当分子交叉时， 在解离化学吸附之前的活化屏障，或 缔合解吸 反应性的各向异性 气体表面势将被探测为分子的函数 利用多光子激光电离的定向几何学 光谱学来检测以下物质的产物的特定状态： 激活缔合重组。 角度选择， 速度选择，偏振光谱将被采用 来检测特定的化学事件 这些实验研究的结果将提供详细的 对化学反应如何在表面上发生的新见解。 在 此外，它们还将使理论上的 模拟分子与表面相互作用的方法。 建立可靠的势函数方法 能量表面将反过来促进表面的建模 化学反应。

This project is in the general area of analytical and surface chemistry and in the subfield of gas-surface reaction dynamics. The research program will investigate the forces between a diatomic molecule and a surface when the molecule is crossing an activation barrier prior to dissociative chemisorption or associative desorption. The anisotropy of the reactive gas-surface potential will be probed as a function of molecular orientation geometry using multiphoton laser ionization spectroscopy to detect the specific states of the products of activated associative recombination. Angle-selected, velocity-selected, polarization spectroscopy will be employed to detect specific chemical events. The results of these experimental studies will provide detailed new insights into how chemical reactions occur on surfaces. In addition they will enable precise testing of theoretical methods of modeling the interaction of molecules with surfaces. Development of reliable methods for constructing potential energy surfaces will in turn facilitate modeling of surface chemical reactions.