Femtosecond Photoelectron Spectroscopy of Molecular and Cluster Anions

分子和团簇阴离子的飞秒光电子能谱

• 批准号: 0092574
• 负责人: Daniel Neumark
• 金额: $ 49.9万
• 依托单位: University of California-Berkeley
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2001
• 资助国家: 美国
• 起止时间: 2001-02-01 至 2004-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0092574&HistoricalAwards=false
• 关键词: Femtosecond; Photoelectron; Spectroscopy; Molecular; Cluster

Professor Daniel Neumark of University of California Berkeley is supported by the Experimental Physical Chemistry program to perform experimental studies on time resolved dynamics in molecular and cluster anions. One of the goals of the work is to understand the significant differences in the gas phase and solution dissociation dynamics of solvated anions, paying particular attention to the effects of the excess electron. The work continues studies using femtosecond photoelectron spectroscopy and also will include new investigations into photoelectron angular distributions. The fundamental study of anions in clusters will lead to insights about solvation of these species, which are of great importance in electrochemical and biochemical processes, as well as in chemical synthesis. Understanding the changes that occur in reactivity when a process is transferred from the gas to the solution phases will allow us to better utilize decades of gas phase data in applications in the condensed phase, where most industrial applications occur.

加州大学伯克利分校的Daniel Neumark教授由实验物理化学计划支持，对分子和团簇阴离子的时间分辨动力学进行实验研究。这项工作的目标之一是了解溶剂化阴离子的气相和溶液解离动力学的显著差异，特别是注意过剩电子的影响。这项工作继续使用飞秒光电子能谱进行研究，还将包括对光电子角分布的新研究。对团簇中阴离子的基础研究将有助于深入了解这些物种的溶剂化作用，这在电化学和生化过程以及化学合成中都具有重要意义。了解当过程从气体转移到溶液阶段时反应性发生的变化，将使我们能够更好地在冷凝阶段的应用中利用数十年的气相数据，大多数工业应用都发生在冷凝阶段。