Photoelectron Spectroscopy of Molecular and Cluster Anions

Kit H.Bowen，Jr.约翰·霍普金斯大学化学结构、动力学和机理项目的一名研究员与他的研究生、本科生和高中研究人员一起，利用气相、阴离子光电子能谱研究了广泛的化学课题。正在研究的系统包括生物分子的负离子、扩散的过剩电子态和由电子诱导的质子转移形成的物种。所有这些都与化学及相关领域的基本问题和问题有关。这些实验和鲍恩的理论同事的工作之间的协同作用导致了对这些问题的结构、动力学和机械方面的更深层次的洞察。这项研究扩展了各种领域的知识前沿，如质谱学、肿瘤学、电化学、分析化学、酶学和放射化学/生物学。它向我们展示了电子如何与分子和分子(簇)的集合相互作用，以及产生的阴离子如何与其他分子相互作用。这项工作对研究生和本科生的教育有很大的促进作用。它还让高中生得以一瞥科学研究。

Kit H. Bowen, Jr. of Johns Hopkins University is supported by an award from the Chemical Structure, Dynamics, and Mechanism Program of the Chemistry Division to investigate, with his graduate, undergraduate, and high school researchers, a broad range of chemical topics using gas-phase, anion photoelectron spectroscopy. Systems under study include negative ions of bio-molecules, diffuse excess electron states, and species formed by electron-induced proton transfer. All of these are related to fundamental questions and issues in chemistry and related fields. The synergy between these experiments and the work of Bowen's theoretical colleagues leads to yet deeper insight into structural, dynamical, and mechanistic aspects of these problems. This research expands the frontiers of knowledge in fields as diverse as mass spectrometry, oncology, electrochemistry, analytical chemistry, enzymology, and radiation chemistry/biology. It shows us how electrons interact with molecules and collections of molecules (clusters) and how the resultant anions interact with other molecules. This work contributes strongly to the education of graduate students and undergraduates. It also provides high school students with a glimpse into scientific research.