Optical and Microwave Molecular Beam Studies of Transition Metal Containing Polyatomic Radicals

含过渡金属多原子自由基的光学和微波分子束研究

• 批准号: 9322612
• 负责人: Timothy Steimle
• 金额: $ 20.92万
• 依托单位: Arizona State University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1994
• 资助国家: 美国
• 起止时间: 1994-04-15 至 1997-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9322612&HistoricalAwards=false
• 关键词: Optical; Microwave; Molecular; Beam; Studies

In this project in the Physical Chemistry Program of the Chemistry Division, Professor T. C. Steimle of Arizona State University will investigate (a) early transition metal containing transient species associated with laser-induced plasma dehydrogenation reactions that produce metallo-carbonhedrenes and microclusters of titanium nitride, and (b) late second row (rhodium, palladium and silver) and third row (iridium, platinum and gold) transition metal dihydrides, carbenes, amides, imides, and metal-methyl, metal-ammonia and metal-water insertion products. The species will be prepared by a combined laser ablation and supersonic expansion technique, and will be probed by methods of high resolution spectroscopy. Among these are the laser induced fluorescence in the presence of a variable d.c. electric field and pump-probe microwave -optical double resonance techniques. The research will provide data for the fundamental understanding of the reaction chemistry of metals with organic and inorganic molecules. This research has high relevance for the development of sophisticated technologies, such as wear resistant coatings, and for developments in catalysis.

亚利桑那州立大学的T. C. Steimle教授将在化学学部的物理化学项目中研究(a)与激光诱导的等离子体脱氢反应相关的含有瞬态物质的早期过渡金属，这些反应会产生金属碳烯和氮化钛的微团簇，以及(b)第二行（铑、钯和银）和第三行（铱、铂和金）过渡金属二氢化物、碳烯、酰胺，亚胺，金属-甲基，金属-氨和金属-水插入产品。该物质将采用激光烧蚀和超音速膨胀相结合的方法制备，并采用高分辨率光谱方法进行探测。其中包括可变直流电场下的激光诱导荧光和泵浦-探针微波-光学双共振技术。该研究将为金属与有机和无机分子的反应化学的基本认识提供数据。这项研究对复杂技术的发展有很高的相关性，如耐磨涂层，以及催化的发展。