Optical and Microwave Absorption Spectroscopy of Metal containing Molecules

含金属分子的光学和微波吸收光谱

• 批准号: 1011996
• 负责人: Timothy Steimle
• 金额: $ 41.47万
• 依托单位: Arizona State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2010
• 资助国家: 美国
• 起止时间: 2010-09-01 至 2013-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1011996&HistoricalAwards=false
• 关键词: Optical; Microwave; Absorption; Spectroscopy; Metal

In this award, funded by the Chemical Structure, Dynamics and Mechanisms Program of the Chemistry Division, Prof. Timothy C. Steimle of Arizona State University and his postdoctoral fellows, graduate, and undergraduate research students will study the high-resolution optical and microwave spectroscopy of metal-containing small molecules. A systematic study of metal mono- and dihydrides (MH, MH2), monofluorides (MF) and hydroxides (MOH) for the early transition metal group (scandium to copper) will be performed, with particular emphasis on the determination of electric and magnetic dipole moments, and magnetic hyperfine interactions. This study will reveal insights into the nature of chemical bonding in metal containing molecules, and allow for an assessment of the reliability of computational methodologies. Metal containing molecules such as the di- and tri-atomic systems targeted in this research represent model for understanding a variety of important reactions involving metals, including catalytic reactions. A second effort will focus on high atomic number diatomic metal halides and oxides which are the focus of parity non-conservation investigations. Parity non-conservation is a topic that concerns the fundamental symmetry properties of the universe and the effects are greatly enhanced in polar high atomic number metal containing diatomic molecules.In addition to the aforementioned broader scientific applications of the proposed research to cutting-edge experiments in exciting areas of modern physics research, Prof. Steimle maintains a small but diverse research group, with whom he works closely to train in modern instrumental methods and sophisticated quantum mechanics. The group benefits from a number of collaborations -- both foreign as well as domestic -- which provides his group members with valuable interdisciplinary experience that crosses international borders.

该奖项由化学学部化学结构、动力学和机制项目资助，亚利桑那州立大学的Timothy C. Steimle教授及其博士后、研究生和本科生将研究含金属小分子的高分辨率光学和微波光谱。将对早期过渡金属族（钪到铜）的金属单氢化物和二氢化物（MH、MH2）、单氟化物（MF）和氢化物（MOH）进行系统研究，特别强调电偶极矩和磁偶极矩以及磁超细相互作用的测定。这项研究将揭示金属分子化学键的本质，并允许对计算方法的可靠性进行评估。含金属分子，如本研究中针对的二原子和三原子系统，代表了理解各种涉及金属的重要反应的模型，包括催化反应。第二项工作将集中在高原子序数双原子金属卤化物和氧化物上，它们是宇称非守恒研究的重点。宇称不守恒是一个关系到宇宙基本对称性的课题，在极性高原子序数金属双原子分子中，宇称不守恒效应得到了极大的增强。除了上述提议的研究在现代物理研究领域的前沿实验的更广泛的科学应用之外，Steimle教授还保持着一个小而多样化的研究小组，他与他们密切合作，培训现代仪器方法和复杂的量子力学。该小组受益于许多国内外合作，这为他的小组成员提供了跨越国际边界的宝贵跨学科经验。