Coincidence Studies of Exotic Anions and Reactive Intermediates

在这个由实验物理化学项目资助的奖项中，加州大学圣地亚哥分校的Robert Continetti和他的学生正在研究双Rydberg阴离子、偶极结合阴离子以及参与生物和大气过程的系统的阴离子前体的能量学和动力学。这些实验利用了光电子-光碎片符合(PPC)光谱学，这是Continetti小组开发的一项强大的技术。对双里德堡物种的研究探索了与扩散轨道上运动的电子对相关的基本问题。康涅蒂和他的团队还将研究水团簇阴离子和次亚硝酸根离子(NO-)与水、氨和硫化氢的弱结合团簇。这些研究将加深对NO-和一氧化氮(NO)溶剂化的理解，一氧化氮在血流调节中起着重要作用。实验工作得到了光解过程的能量学和动力学的电子结构计算的支持。约翰霍普金斯大学的Kit Bowen教授利用负离子光电子能谱制造并表征了双Rydberg阴离子，他将支持Continetti的这项工作。Continetti和他的团队使用PPC技术进行的实验将使人们对几个重要阴离子系统的电子结构有更深入的了解。这些实验在理论和大气化学方面有相当大的兴趣，在生物化学中也有应用。该项目将为物理化学方面的研究生和博士后研究员提供出色的培训。

In this award, funded by the Experimental Physical Chemistry program, Robert Continetti of the University of California, San Diego and his students are studying the energetics and dynamics of double-Rydberg anions, dipole-bound anions, and anionic precursors to systems involved in biological and atmospheric processes. The experiments exploit photoelectron-photofragment coincidence (PPC) spectroscopy, a powerful technique developed by the Continetti group. Studies of the double-Rydberg species probe fundamental questions relating to the correlation of pairs of electrons moving in diffuse orbitals. Continetti and his group also will study water cluster anions and weakly bound clusters of the hyponitrite ion (NO-) with water, ammonia, and hydrogen sulfide. These studies will provide an improved understanding of the solvation of NO- and of nitric oxide (NO), which plays an important role in the regulation of blood flow. The experimental work is supported by electronic structure calculations on the energetics and dynamics of the photodissociation processes. Professor Kit Bowen of Johns Hopkins University, who has produced and characterized double-Rydberg anions using negative ion photoelectron spectroscopy, will support Continetti in this work. The experiments carried out by Continetti and his group using the PPC technique will lead to a deeper understanding of the electronic structures of several important anionic systems. These experiments are of considerable interest in theoretical and atmospheric chemistry, as well as having applications in biochemistry. The project will provide excellent training for graduate students and postdoctoral fellows in physical chemistry.