Photoreactivity of Weakly Bounded Molecular Complexes

在这个实验物理化学项目中， Veronica Vaida博士将研究 对给定物质的反应性的影响， 与作为小簇的一部分的“溶剂”分子相关联。 这些研究有助于理解 一个物种从一个孤立的个体变成一个 凝相形式 这些研究也影响了 反应性的大气物种，这往往是存在于 小气相簇的形式，因此具有 例如，影响烟雾的形成和消散。 在目前的研究中，小分子溶剂化的分子， 团簇将被光解。 各种属性，例如 吸收截面和量子产率 光解离，将比较孤立和 溶剂化物种 新渠道的出现， 将研究溶剂化物质的光解离。

In this project in the Experimental Physical Chemistry Program of the Chemistry Division, Dr. Veronica Vaida will study the effects on the reactivity of a given species when it is associated with "solvent" molecules as part of a small cluster. Such studies aid in understanding the changes in properties of a species in going from a single isolated entity to a condensed-phase form. These studies also impact on the reactivity of atmospheric species, which are often present in the form of small gas-phase clusters, and as such have a bearing, for example, on the formation and dissipation of smog. In the current studies, molecules which are solvated in small clusters will be photodissociated. Various properties, such as absorption cross sections and quantum yields for photodissociation, will be compared between isolated and solvated species. The emergence of new channels for photodissociation of the solvated species will be investigated.