Spectroscopy and Dynamics of Anions

在这个由化学系化学结构、动力学和机理计划资助的奖项中，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时结构和反应过程。实验技术包括时间分辨光解离光电子成像谱和负离子光电子能谱。将被研究的分子系统的重要类别包括在燃烧中起重要作用的三元环碳氮自由基，在决定对流层顶附近大气中的OH浓度方面起重要作用的OO-OH自由基，以及在理解质子转移方面起重要作用的各种离子中性络合物。所有提议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。虽然选择要研究的系统是因为它们的基础科学意义，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许多化学领域的坚实基础，来促进科学劳动力的发展。此外，该研究计划的参与者将为科罗拉多州科学教育倡议(SEI)扩展到科罗拉多州的本科生物理化学课程做出重要贡献。最后，本建议中所述的研究和教育活动为首席研究人员继续开展的活动提供了重要的可信度，这些活动涉及倡导自然科学的研究和教育。

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.