Spectroscopic Investigations of Exotic Carbon and Silicon Molecules

奇异碳和硅分子的光谱研究

• 批准号: 0353693
• 负责人: Patrick Thaddeus
• 金额: $ 46.56万
• 依托单位: Smithsonian Institution Astrophysical Observatory
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2004
• 资助国家: 美国
• 起止时间: 2004-05-01 至 2008-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0353693&HistoricalAwards=false
• 关键词: Spectroscopic; Investigations; Exotic; Carbon; Silicon

In this project, funded by the Experimental Physical Chemistry Program of the Chemistry Division, Prof. Thaddeus of the Harvard-Smithsonian Astrophysical Observatory will conduct a research program for the investigation of rotational and electronic spectra of postulated carbon and silicon molecules by means of laboratory Fourier transform microwave spectroscopy, in combination with a supersonic molecular beam, long-path millimeter-wave spectroscopy, and laser spectroscopy. Previously unobserved species, such as silicon clusters and silicon hydrides, and reactive ring compounds, e.g., meta-benzyne, cyclopentadienylidene and tetradehydrobenzenes postulated by ab initio theory will be searched for and investigated. In addition, investigations will be carried out on complex molecular ions, such as protonated ring-chains, ring-chain carbenes, and weakly polar molecules and complexes. Many of these molecules are expected to play a role as reactive intermediates in industrial processes such as combustion and semiconductor growth processes, as well as in astronomy. The work will serve to answer basic questions about the structure and bonding of carbon and silicon molecules of the same size.The research will be conducted with the assistance of graduate and undergraduate students and post doctoral research associates. These participants will acquire advanced training in contemporary physical chemistry in preparation for advanced studies or employment in the industrial, academic, or government sectors of our economy. Collaborations with experimental and theoretical groups in the USA and elsewhere will contribute to the conduct of the research.

在这个由化学系实验物理化学计划资助的项目中，哈佛-史密森天体物理天文台的Thaddeus教授将进行一项研究计划，通过实验室傅里叶变换微波光谱学，结合超声分子束，长路径毫米波光谱学，和激光光谱学。 以前未观察到的物种，如硅簇和硅氧化物，以及反应性环化合物，将搜寻和研究由从头算理论假设的间苯炔、亚环戊二烯基和四脱氢苯。 此外，还将对复杂的分子离子进行研究，如质子化的环链、环链卡宾和弱极性分子和络合物。 这些分子中的许多预计将在工业过程中发挥作用，如燃烧和半导体生长过程，以及在天文学中的活性中间体。 这项工作将有助于回答关于相同大小的碳和硅分子的结构和键合的基本问题。研究将在研究生和本科生以及博士后研究助理的协助下进行。 这些参与者将获得当代物理化学的高级培训，为我们经济的工业，学术或政府部门的高级研究或就业做准备。与美国和其他地方的实验和理论小组的合作将有助于研究的进行。