Spectroscopy and Dynamics of Anions

该奖项由化学学部化学结构、动力学和机制项目资助，科罗拉多大学的W. Carl Lineberger教授将与他的博士后和研究生研究人员一起，研究涉及反应中间体和溶剂化阴离子的瞬态结构和反应过程。实验技术包括时间分辨光解光电子成像能谱和负离子光电子能谱。将被研究的重要分子体系类别包括在燃烧中起重要作用的三元环碳氮自由基，在确定对流层顶附近OH的大气浓度中起重要作用的OO-OH自由基，以及在理解质子转移中起重要作用的各种离子中性配合物。所有提出的实验的一个关键组成部分是理论合作者的广泛参与，将最先进的理论、模拟和实验结合在一起。虽然所要研究的系统是根据其基础科学意义而选择的，但它们通常在从大气化学到燃烧科学到阴离子聚合等领域具有重要的中期应用。该项目还将通过为学生和博士后研究人员提供跨化学许多领域的坚实基础，成为科学劳动力发展的工具。此外，该研究项目的参与者将为科罗拉多科学教育倡议（SEI）扩展到科罗拉多大学的本科物理化学课程做出重要贡献。最后，本提案中描述的研究和教育活动都为首席研究员在其涉及倡导物理科学研究和教育的持续活动中提供了必要的可信度。

In this award, funded by the Chemical Structure, Dynamics and Mechanisms Program of the Division of Chemistry, Professor W. Carl Lineberger of the University of Colorado, together with his postdoctoral and graduate student researchers, will study the transient structures and reactive processes involving reaction intermediates and solvated anions. The experimental techniques include time-resolved photodissociation and photoelectron imaging spectroscopy and negative-ion photoelectron spectroscopy. Important classes of molecular systems that will be investigated include three-member cyclic carbon-nitrogen radicals important in combustion, the OO-OH radical important in determining the atmospheric concentration of OH near the tropopause, and a variety of ion-neutral complexes important in understanding proton transfer. A key component of all of the proposed experiments is the extensive participation of theoretical collaborators that brings state of the art theory, simulation, and experiment together.While the systems to be investigated have been chosen for their fundamental science implications, they often have important medium-term applications, in fields ranging from atmospheric chemistry to combustion science to anionic polymerization. This project will also be a vehicle for scientific workforce development by providing students and postdoctoral researchers with a solid foundation across many areas of chemistry. In addition, participants in this research program will make important contributions to the extension of the Colorado Science Education Initiative (SEI) to undergraduate physical chemistry classes at Colorado. Finally, both the research and educational activities described in this proposal provide an essential credibility for the principal investigator in his continuing activities that involve advocacy of research and education for the physical sciences.