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Karl A. Gingerich博士与Winfried Schulze博士和Max Planck Gesellschaft，FRG的Fritz Haber研究所的D. M. Kolb博士合作，在FRG的光谱研究中，金属簇的反应从两个大小的反应。原子到胶体颗粒。 借助Schulze博士，他将使用多种现代研究技术研究电子和振动能级对簇大小，中性和带电簇的稳定性以及其特定反应性的依赖性。 要研究的特定系统包括锂，铁和镍的簇，以及它们与低温矩阵和气相中氮和一氧化碳的相互作用。 对于科尔布博士，他将测量分子的光谱，例如锗，铝和镀甘特。 这些分子已经或正在通过德克萨斯州A＆M的平衡质谱法研究，以获得其键能。 Schulze博士的小组涉及金属簇的制备，特征和反应。 它们在基质分离的金属和金属簇的光学和振动研究方面具有丰富的经验。 此外，他们还完善了气体聚集技术，以生成狭窄尺寸分布和高强度（包括胶体尺寸）的金属簇。 科尔布博士的小组涉及使用光谱作为其主要分析工具的金属原子和小簇的基质分离光谱的基本方面。 他们工作的主要目的是提高对基质对电子过渡和几何影响的影响的基本理解。 Gingerich博士的研究涉及使用平衡质谱研究来研究小型无机分子的键能，其中大多数是硅藻金属和小的金属簇在催化过程中很重要。 通过合作，他将获得比他一直在研究的金属簇的制备和光谱研究的更多经验。他还将学习研究其反应性和催化作用的技术。 鉴于激光光谱的发展以及在德克萨斯州A＆M的表面科学中心的扩展，这种经验将为将他的金属簇研究扩展到催化和面向科学的研究。