Spectroscopy and Imaging of Organometallic Complexes

肯塔基大学的杨东升教授是由化学结构、动力学和机理A(CSDM-A)计划资助的一个名为“金属有机络合物的光谱和成像”的项目。碳氢化合物是石油和天然气的主要成分，将其转化为化学原料是一个重要的商业过程。设计选择性和高效的催化剂(促进化学反应的物种)是当前非常感兴趣的领域。这项研究将考察金属原子与碳氢化合物相互作用的方式。这些信息将显示碳氢化合物如何转化为其他化学品，并应指导新催化剂的设计，以减少碳氢化合物转化所需的能量。该项目为不同层次的学生提供具有技术挑战性的培训，并为他们在工业、学术或公共部门的职业生涯做好准备。中性稀土原子与小碳氢化合物反应形成的暂态有机金属络合物将通过单光子Zeke/Mati光谱、PEVMI和双色IR-UV光电离化进行表征。将确定准确的离子交换效率、金属配体和基于配体的振动频率，以及中性和阳离子物种之间的结构差异。电子态和分子结构将通过比较化学和电子相似的分子体系的光谱，并通过光谱测量和理论计算相结合来研究。该调查员积极参与制定本科课程和为当地K-12学生提供辅导计划。

Professor Dong-Sheng Yang of the University of Kentucky is funded by the Chemical Structure, Dynamics and Mechanisms A (CSDM-A) Program for a project titled "Spectroscopy and Imaging of Organometallic Complexes." The conversion of hydrocarbons, the major constituents of petroleum and natural gas, into chemical feedstocks is an important commercial process. The design of selective and efficient catalysts (species that facilitate a chemical reaction) is a current area of much interest. This study will look at the way metal atoms interact with hydrocarbons. This information will show how hydrocarbons can be converted into other chemicals and should guide the design of new catalysts that can reduce the energy required for hydrocarbon conversion. The project provides technically challenging training for a diverse group of students at all levels and prepares them for careers in industry, academia, or the public sector.Ttransient organometallic complexes formed in the reactions of the neutral lanthanide atoms and small hydrocarbons will be characterized by single-photon ZEKE/MATI spectroscopy, PEVMI, and two color IR-UV photoionization. Accurate IEs, metal-ligand and ligand based vibrational frequencies, and structural differences between the neutral and cationic species will be determined. Electronic states and molecular structures will be investigated by comparing the spectra of chemically and electronically similar molecular systems and by combining the spectroscopic measurements with theoretical calculations. The investigator is active in the development of undergraduate curricula and in the mentoring programs for local K-12 students.