US-Federal Republic of Germany Cooperative Research on the Properties and Reactivity of Metal Clusters

美德意志联邦共和国金属团簇性能和反应性合作研究

• 批准号: 8912626
• 负责人: Karl Gingerich
• 金额: $ 1.35万
• 依托单位: Texas A&M Research Foundation
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1990
• 资助国家: 美国
• 起止时间: 1990-02-01 至 1991-10-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8912626&HistoricalAwards=false
• 关键词: US; Federal; Republic; Germany; Cooperative

This award supports Dr. Karl A. Gingerich to collaborate with Dr. Winfried Schulze and Dr. D. M. Kolb of the Fritz Haber Institute of the Max Planck Gesellschaft, Berlin, FRG, in spectroscopic studies of the reactions of metal clusters ranging in size from two atoms to colloidal particles. With Dr. Schulze, he will investigate the dependence of the electronic and vibrational energy levels on cluster size, the stability of neutral and charged clusters and of their specific reactivity using a wide variety of modern research techniques. Specific systems to be studied include clusters of lithium, iron and nickel, and their interactions with nitrogen and carbon monoxide in low temperature matrices and in the gas phase. With Dr. Kolb, he will measure the optical spectra of molecules such as Germanium, Aluminum and Gallium. These molecules have been or are being studied by equilibrium mass spectrometry at Texas A & M to obtain their bond energies. Dr. Schulze's group is concerned with the preparation, characteri- zation and reactions of metal clusters. They have extensive experience in optical and vibrational studies of matrix-isolated metals and metallic clusters. Also, they have refined the gas aggregation technique to generate metal clusters in narrow size distributions and in high intensities, including colloidal sizes. Dr. Kolb's group is concerned with fundamental aspects of matrix isolation spectroscopy of metal atoms and small clusters, using optical spectroscopy as their principal analytical tool. A major objective of their work is to improve fundamental understanding of matrix effects on electronic transitions and geometry. Dr. Gingerich's research has involved using equilibrium mass spectroscopy to study the bond energies of small inorganic molecules, most of them diatomic metals and small metallic clusters that are important in catalytic processes. Through collaboration, he will gain more experience in the preparation and spectroscopic study of metal clusters larger than the ones he has been investigating. He also will learn techniques for studying their reactivity and catalytic action. In view of the development of laser spectroscopy and the extablishment of a Surface Science Center at Texas A & M, this experience will lay the groundwork for extending his research on metal clusters into catalysis and surface science oriented studies.

该奖项支持卡尔博士。Gingerich与博士合作。 Winfried Schulze和D. M.弗里茨·哈伯研究所的科尔布 德国柏林马克斯·普朗克公司在光谱学研究中， 金属团簇的反应大小从两个原子到 胶体颗粒 与舒尔茨博士一起，他将调查 电子能级和振动能级对团簇的依赖性 大小，中性和带电集群的稳定性， 使用各种现代研究的特定反应性 技术. 要研究的具体系统包括： 锂、铁和镍，以及它们与氮的相互作用， 低温基质和气相中的一氧化碳。 与科尔布博士一起，他将测量分子的光谱， 锗、铝和镓。 这些分子已经或正在 在德克萨斯A M大学用平衡质谱法进行研究， 求出它们的键能。 Schulze博士的小组关注的是准备，特征- 金属簇合物的化学反应。 他们有广泛的 矩阵隔离的光学和振动研究经验 金属和金属簇。 他们还提炼了天然气 聚集技术产生窄尺寸金属簇 分布和高强度，包括胶体大小。 Kolb博士的小组关注矩阵的基本方面 金属原子和小团簇的分离光谱，使用 光学光谱作为其主要分析工具。 一个主要 他们的工作目标是提高对以下问题的基本认识： 矩阵效应对电子跃迁和几何形状的影响。 博士 金格里奇的研究涉及使用平衡质谱法 研究无机小分子的键能， 双原子金属和小的金属簇， 催化过程。 通过合作，他将获得更多 金属的制备和光谱研究经验 比他一直在调查的那些更大的集群。他还 将学习研究其反应性和催化性的技术 行动上 鉴于激光光谱学的发展， 在得克萨斯州建立表面科学中心， 经验将为他扩展金属研究奠定基础 簇催化和表面科学为导向的研究。