Probing the Metal-Carbon Bond: High Resolution Spectroscopy of Grignard Reagents and 3d Metal Carbon Clusters

探测金属-碳键：格氏试剂和 3d 金属碳簇的高分辨率光谱

• 批准号: 1565765
• 负责人: Lucy Ziurys
• 金额: $ 46.6万
• 依托单位: University of Arizona
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2016
• 资助国家: 美国
• 起止时间: 2016-06-15 至 2020-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1565765&HistoricalAwards=false
• 关键词: Probing; Metal; Carbon; Bond; Resolution

In this project funded by the Chemical Structures, Dynamics, and Mechanisms-A Program, Professor Lucy M. Ziurys of the University of Arizona is exploring the chemical structure and behavior of small, novel compounds that contain metal-carbon bonds. Of particular interest are the so-called transition metal elements like iron (Fe), copper (Cu), cobalt (Co) and titanium (Ti). Understanding how metal elements interact and bond with carbon is pivotal to the advance of many other areas of chemistry and technology, including organic and inorganic chemical synthesis, catalysis, materials science, biochemistry, and even astrochemistry. Using a microwave spectroscopy technique, Prof. Ziurys is studying the arrangement of atoms and electrons in these model molecules. The information obtained then provides important insights into larger, more complex molecules and in developing theoretical predictions. The research involves a collaborative team of experimentalists and theorists, with an emphasis on both graduate and undergraduate education. Professor Ziurys is studying the geometric and electronic properties of metal-bearing molecules using high-resolution, gas-phase rotational spectroscopy techniques. The novel species being studied are small, metal carbon clusters related to metallocarbohedrenes and endohedral metallofullerenes, and classic Grignard-type reagents. They are produced by gas-phase synthetic methods utilizing Broida ovens, organometallic precursors, and laser ablation. In addition, a new spectrometer is being built to further these studies. A program has been established for undergraduate students from other, non-PhD granting institutions to participate in this research project. The broader impacts of this work include the development of millimeter/sub-millimeter experimental methodologies that are applicable to analytical chemistry and the detection of trace species in chemical mixtures. Additionally, this research is providing student training in precision measurements and experimental techniques, theory, and synthesis involving metals, all of which are skill sets relevant to the chemical, catalysis, mining, medical, and semiconductor industries.

在该项目由化学结构，动力学和机制 - A计划资助的项目中，亚利桑那大学的Lucy M. Ziurys教授正在探索包含金属碳键的小型新型化合物的化学结构和行为。特别令人感兴趣的是所谓的过渡金属元件，例如铁（Fe），铜（Cu），钴（CO）和钛（Ti）。了解金属元素如何与碳相互作用和键合对于许多其他化学和技术领域的发展至关重要，包括有机和无机化学合成，催化，材料科学，生物化学甚至天体化学。使用微波光谱技术，Ziurys教授正在研究这些模型分子中原子和电子的排列。然后，获得的信息为更大，更复杂的分子和发展理论预测提供了重要的见解。这项研究涉及实验家和理论家的合作团队，重点是研究生和本科教育。 Ziurys教授正在研究使用高分辨率，气相旋转光谱技术的金属含有分子的几何和电子特性。 所研究的新型物种是小的金属碳簇，与金属碳纤维和内膜甲基氟烯烯和经典的Grignard型试剂有关。它们是由使用烤烤箱，有机金属前体和激光消融的气相合成方法产生的。此外，正在建立一个新的光谱仪以进一步进一步研究。已经建立了一项计划，供其他非PHD授予机构参与该研究项目的本科生。这项工作的更广泛的影响包括适用于分析化学和化学混合物中痕量物种的毫米/亚毫米实验方法的发展。 此外，这项研究还提供了涉及金属的精确测量和实验技术，理论和合成的学生培训，所有这些都是与化学，催化，采矿，医疗和半导体工业有关的技能。