Spectroscopic Investigations of Exotic Carbon, Silicon and Sulfur Molecules

奇异碳、硅和硫分子的光谱研究

• 批准号: 0701204
• 负责人: Charles Alcock
• 金额: $ 45.5万
• 依托单位: Smithsonian Institution Astrophysical Observatory
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2007
• 资助国家: 美国
• 起止时间: 2007-09-01 至 2011-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0701204&HistoricalAwards=false
• 关键词: Spectroscopic; Investigations; Exotic; Carbon; Silicon

In this award, supported by the Experimental Physical Chemistry Program with partial cofunding from the Galactic Astronomy Program, Patrick Thaddeus and Michael McCarthy of the Smithsonian Institution Astrophysical Observatory will study the rotational and electronic spectra of postulated carbon and silicon molecules using Fourier transform microwave spectroscopy in combination with supersonic molecular beam, long-path millimeter-wave spectroscopy, and laser spectroscopy. The rotational spectra of many new molecules, including larger pure carbon clusters, similar semiconductor and mixed-metal clusters, reactive six-member carbon rings and their derivatives, and other molecules containing heteroatoms such as N, O, S, or P, will be detected with available instrumentation. With planned instrument refinements, even larger reactive species will be detected and studied. The molecules to be examined play important roles in reactive intermediates in industrial processes, including combustion and semiconductor growth, and are astronomically relevant because they are similar in composition and structure to molecules that have already been detected in dense molecular clouds or in the gas streaming away from evolved stars. This research is expected to impact a number of areas of scientific research and technological innovation, because of the important role that carbon and silicon chemistry play in fields as diverse as combustion, materials science, and astronomy. Many of the reactive molecules to be studied are little known so far; in fact, few of them have been identified in any region of the spectrum. Students and collaborators will benefit from their active involvement in this research project.

在该奖项中，在实验性物理化学计划的支持下，由银河天文学计划进行了部分融资，史密森尼机构天体物理观测站的帕特里克·萨德德斯（Patrick Thaddeus）和迈克尔·麦卡锡（Michael McCarthy和激光光谱。许多新分子的旋转光谱，包括较大的纯碳簇，相似的半导体和混合金属簇，反应性的六成员碳环及其衍生物以及其他含有N，O，S或P等杂原子的分子，可通过可用的仪器检测到。 有了计划的仪器改进，将检测和研究甚至更大的反应性物种。要检查的分子在工业过程中的反应性中间体中起重要作用，包括燃烧和半导体生长，并且在天文学上具有相关性，因为它们在组成和结构上与已经在密集的分子云中检测到的分子相似，或者在远离恒星的气体流中已经检测到的分子。 预计这项研究将影响科学研究和技术创新的许多领域，因为碳和硅化学在燃烧，材料科学和天文学等多样化的领域中发挥了重要作用。 到目前为止，许多要研究的反应性分子鲜为人知。实际上，在频谱的任何区域中都没有发现其中的几个。学生和合作者将从积极参与该研究项目中受益。