Signature and efficiency of Intermolecular Coulombic Decay in water clusters, liquid water and ice

水团簇、液态水和冰中分子间库仑衰变的特征和效率

• 批准号: 221570147
• 负责人: Privatdozent Dr. Uwe Hergenhahn
• 金额: --
• 依托单位: Institut für Technische Chemie
• 依托单位国家: 德国
• 项目类别: Research Units
• 财政年份: 2012
• 资助国家: 德国
• 起止时间: 2011-12-31 至 2020-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/221570147?language=en
• 关键词: Signature; efficiency; Intermolecular; Coulombic; Decay

In this project we plan to investigate: 1. Fundamental properties of ICD after photoionization of rare gas clusters and 2. We will demonstrate ICD in solute systems of water and organic molecules. An important fundamental question we will address is the efficiency of ICD: Our experimental set-up is uniquely suitable to verify that other relaxation channels, such as fluorescence, cannot compete with ICD whenever this channel is open. In mixed rare gas clusters, we find an interesting nanolaboratory to explore in which way IC decays into different final states connect to structural features of the clusters. To conclude on an effectiveness of ICD and ETMD in a biochemical context, we would like to study these decays in microsolvation clusters, which can be seen as elementary building blocks of living tissue. Clusters consisting of H2O and amino acid or nucleobase molecules will be produced, and the occurrence of ICD will be demonstrated by electron-electron coincidence spectroscopy.

在这个项目中，我们计划调查：1。稀有气体团簇光电离后ICD的基本性质和2.我们将在水和有机分子的溶质系统中演示ICD。我们将解决的一个重要的基本问题是ICD的效率：我们的实验装置非常适合验证其他弛豫通道（例如荧光）在该通道打开时无法与ICD竞争。在混合稀有气体团簇中，我们发现了一个有趣的纳米实验室来探索IC衰变到不同终态的方式与团簇的结构特征之间的联系。为了总结ICD和ETMD在生物化学背景下的有效性，我们想研究微溶剂化簇中的这些衰变，微溶剂化簇可以被视为活组织的基本构建块。将产生由H2O和氨基酸或核碱基分子组成的团簇，并且将通过电子-电子符合光谱证明ICD的发生。