Optical absorption spectroscopy of metal containing molecules

含金属分子的光吸收光谱

• 批准号: 0078899
• 负责人: Timothy Steimle
• 金额: $ 27.8万
• 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: 2000
• 资助国家: 美国
• 起止时间: 2000-08-01 至 2003-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0078899&HistoricalAwards=false
• 关键词: Optical; absorption; spectroscopy; metal; containing

Timothy Steimle of Arizona State University is supported by a grant from the Experimental Physical Chemistry Program with which he is using optical absorption spectroscopy to study early transition metal containing radicals and magnesium organometallic radicals. The radicals will be generated in the supersonic expansion of a laser ablated metal source and the species detected using high resolution LIF and a proposed transient frequency modulation spectrometer. These techniques will be used to obtain hyperfine structure of these species and permanent electric dipole moments. Dipole moments will be obtained for the TiCH and VCH known radicals. MgOH, MgCH3, MgCCH, TiCH and CuOH will be studied and searches will be made for hydroxide, imide and thiol radicals containing early transition metals. These data are a stringent test of theory involving electron correlation.This detailed spectroscopy study of transition metal containing compounds will provide high resolution spectra from which fundamental information on permanent electric dipoles of the compounds will be obtained. This will be used to test state of the art theories which are in the development phase for these difficult species. The data are also widely applicable to organometallic, analytical and high temperature chemistry and to stellar atmospheres and the interstellar medium.

亚利桑那州立大学的蒂莫西·斯蒂姆（Timothy Steimle）得到了实验物理化学计划的赠款的支持，他使用光吸收光谱研究了含有自由基和镁有机金属自由基的早期过渡金属。 自由基将在激光烧蚀金属源的超音速扩展中产生，并使用高分辨率LIF和提议的瞬态频率调制光谱仪检测到的物种。 这些技术将用于获得这些物种的超细结构和永久的电偶极矩。 将为TICH和VCH已知的自由基获得偶极矩。 将研究MGOH，MGCH3，MGCCH，TICH和CUOH，并将对含有早期过渡金属的氢氧化物，酰亚胺和硫醇自由基进行搜索。 这些数据是涉及电子相关性的理论的严格检验。该化合物的过渡金属的详细光谱研究将提供高分辨率光谱，从中可以从中获得有关该化合物永久电偶极子的基本信息。 这将用于测试这些困难物种在开发阶段的艺术理论。 数据还广泛适用于有机金属，分析和高温化学，以及恒星大气和星际培养基。