CAREER: Untangling the Energetics and Dynamics of Atom-Radical and Radical-Radical Reactions

职业：解开原子自由基和自由基反应的能量学和动力学

• 批准号: 0234461
• 负责人: Ralf Kaiser
• 金额: $ 59.94万
• 依托单位: University of Hawaii
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2003
• 资助国家: 美国
• 起止时间: 2003-08-01 至 2008-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0234461&HistoricalAwards=false
• 关键词: CAREER; Untangling; Energetics; Dynamics; Atom

In this project, funded within the NSF-wide CAREER program by the Experimental Physical Chemistry Program of the Chemistry Division, Kaiser will investigate the collision-energy dependent reaction dynamics of bimolecular atom-radical reactions of ground state atomic carbon and silicon with propargyl and allyl radicals, and the radical-radical reactions propargyl-propargyl, propargyl-allyl, and allyl-allyl. The principal objective of this research is to unravel the reaction mechanisms that underlie these processes. The experiments will be performed using crossed supersonic beam technology. Both reactant beams will be prepared in well-defined quantum states before they cross with a specific collision energy under single collision conditions. The research will be conducted with a number of international collaborators spanning a variety of expertise. The PI will actively participate in the development of a cross-disciplinary curriculum in reaction dynamics, linking his Department of Chemistry with the Department of Physics and Astronomy, the university's Institute for Astronomy and the Hawai'ian Institute of Geophysics and Planetology. Through these interactions the PI will relate chemical dynamics to astrochemistry, planetary sciences, laboratory astrophysics, astrobiology, and combustion chemistry. The PI's research project will involve the training of undergraduate and graduate students, as well as the further scientific development of postdoctoral researchers. Undergraduate students involved in research, training and mentoring and will primarily be drawn from the underrepresented minority students at the University of Hawai'i. The PI will further engage in an outreach program to science teachers and students at local schools involving visits, presentation of popular scientific lectures, and visits by high school students and teachers to the research laboratories.

在这个由化学部实验物理化学计划资助的NSF全职业计划中，Kaiser将研究基态原子碳和硅与炔丙基和烯丙基的双分子原子-自由基反应的碰撞能量依赖的反应动力学，以及自由基-自由基反应的炔丙基-炔丙基、炔丙基-烯丙基和烯丙基-烯丙基。这项研究的主要目的是揭开这些过程背后的反应机制。这些实验将使用交叉超音速波束技术进行。在单次碰撞条件下，两束反应物光束在与特定的碰撞能量相交之前，将在定义良好的量子态中制备。这项研究将与跨越各种专业知识的多个国际合作者一起进行。PI将积极参与反应动力学跨学科课程的开发，将他所在的化学系与物理和天文学系、该大学的天文研究所以及夏威夷地球物理和行星研究所联系起来。通过这些相互作用，PI将把化学动力学与天体化学、行星科学、实验室天体物理、天体生物学和燃烧化学联系起来。该研究所的研究项目将涉及本科生和研究生的培养，以及博士后研究人员的进一步科学发展。参与研究、培训和指导的本科生将主要来自夏威夷大学人数较少的少数民族学生。PI将进一步参与当地学校的科学教师和学生的外联计划，包括访问、介绍受欢迎的科学讲座，以及高中学生和教师访问研究实验室。