Solvated Electrons in Liquid Jets of Water

水射流中的溶剂化电子

• 批准号: 113069791
• 负责人: Privatdozent Dr. Oliver Bünermann
• 金额: --
• 依托单位: Department of Chemistry
• 依托单位国家: 德国
• 项目类别: Research Fellowships
• 财政年份: 2009
• 资助国家: 德国
• 起止时间: 2008-12-31 至 2009-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/113069791?language=en
• 关键词: Solvated; Electrons; Liquid; Jets; Water

The aim of the proposed postdoctoral stay is to set up a new experiment to measure the energetics and time-resolved dynamics of solvated electrons in liquid microjets of water. These studies will link the vast literature on hydrated electrons in solution and the growing experimental and theoretical body of work on excess electrons in water clusters. The unique properties of liquid microjets enable us to perform one-photon and time-resolved photoelectron spectroscopy (PES) on bulk water. We plan to measure the vertical binding energy (VBE) of electrons in bulk water by one-photon PES of hydrated electrons in water jets, thereby testing the validity of extrapolating VBE's of water cluster anions to the bulk hydrated electron. This will be followed by time-resolved PES experiments that will determine the excited state lifetime of hydrated electrons in water jets, linking time-resolved experiments in cluster anions to transient absorption measurements on aqueous hydrated electrons and providing new insights into their relaxation dynamics.

拟议的博士后逗留的目的是建立一个新的实验，以测量水的液体微射流中溶剂化电子的能量和时间分辨动力学。这些研究将连接大量的文献在溶液中的水合电子和不断增长的实验和理论机构的工作过量的电子在水簇。液体微射流的独特性质使我们能够对散装水进行单光子和时间分辨光电子能谱（PES）。我们计划通过水射流中水合电子的单光子PES测量体相水中电子的垂直结合能（VBE），从而验证将水团簇阴离子的VBE外推到体相水合电子的有效性，随后将通过时间分辨PES实验确定水射流中水合电子的激发态寿命，将簇阴离子中的时间分辨实验与含水水合电子的瞬态吸收测量联系起来，并为它们的弛豫动力学提供新的见解。