Moderate and High Resolution Spectroscopy of Reactive Chemical Intermediates

反应性化学中间体的中高分辨率光谱

• 批准号: 0211281
• 负责人: Terry Miller
• 金额: $ 69.06万
• 依托单位: Ohio State University Research Foundation -DO NOT USE
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2002
• 资助国家: 美国
• 起止时间: 2002-07-01 至 2006-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0211281&HistoricalAwards=false
• 关键词: Moderate; Resolution; Spectroscopy; Reactive; Chemical

In his project, funded by the Experimental Physical Chemistry Program of the Chemistry Division, Miller will conduct spectroscopic detection and characterization experiments on reactive chemical intermediates. The methods used are medium resolution, vibronically resolved and high resolution, rotationally resolved spectroscopy, based on laser-induced fluorescence (LIF) and cavity ringdown spectroscopy (CRDS) techniques. The systems under investigation are alkyl peroxy radicals discovered by the principal investigator during the previous grant cycle.Chemical reactions proceed from initial reactants to the reaction products usually along one of several possible reaction pathways. The reaction intermediates are generally characterized by different short lifetimes. Knowledge of these reaction intermediates, the relative likelihood of their occurrence and their lifetimes plays an important role in predicting the flow of chemical reactions. The systems chosen for investigation are important to the chemistry of the atmosphere, some industrial process, and to our general understanding of reactive molecules. This research is designed to detect and characterize such intermediates. Students and postdoctoral research associates participate in this research. They thereby acquire important knowledge and skills in preparation for entry into the scientific/technological workforce. In his project, funded by the Experimental Physical Chemistry Program of the Chemistry Division, Miller will conduct spectroscopic detection and characterization experiments on reactive chemical intermediates. The methods used are medium resolution, vibronically resolved and high resolution, rotationally resolved spectroscopy, based on laser-induced fluorescence (LIF) and cavity ringdown spectroscopy (CRDS) techniques. The systems under investigation are alkyl peroxy radicals discovered by the principal investigator during the previous grant cycle.Chemical reactions proceed from initial reactants to the reaction products usually along one of several possible reaction pathways. The reaction intermediates are generally characterized by different short lifetimes. Knowledge of these reaction intermediates, the relative likelihood of their occurrence and their lifetimes plays an important role in predicting the flow of chemical reactions. This research is designed to detect and characterize such intermediates. Students and postdoctoral research associates participate in this research. They thereby acquire important knowledge and skills in preparation for entry into the scientific/technological workforce.

在他的项目中，由化学部实验性化学计划资助，米勒将对反应性化学中间体进行光谱检测和表征实验。所使用的方法是基于激光诱导的荧光（LIF）和腔度环光谱（CRDS）技术的中等分辨率，颤振分辨率和高分辨率，旋转分辨率的光谱。所研究的系统是主要研究者在上一个赠款周期中发现的烷基过氧自由基。化学反应从初始反应物到通常沿几种可能的反应途径之一的反应产物进行。反应中间体通常以不同的寿命不同。对这些反应中间体的了解，它们发生的相对可能性和生命的相对可能性在预测化学反应的流动中起着重要作用。选择进行研究的系统对于大气的化学，某些工业过程以及我们对反应性分子的一般理解很重要。这项研究旨在检测和表征此类中间体。学生和博士后研究协会参与了这项研究。因此，他们获得了重要的知识和技能，以准备进入科学/技术劳动力。在他的项目中，由化学部实验性化学计划资助，米勒将对反应性化学中间体进行光谱检测和表征实验。所使用的方法是基于激光诱导的荧光（LIF）和腔度环光谱（CRDS）技术的中等分辨率，颤振分辨率和高分辨率，旋转分辨率的光谱。所研究的系统是主要研究者在上一个赠款周期中发现的烷基过氧自由基。化学反应从初始反应物到通常沿几种可能的反应途径之一的反应产物进行。反应中间体通常以不同的寿命不同。对这些反应中间体的了解，它们发生的相对可能性和生命的相对可能性在预测化学反应的流动中起着重要作用。这项研究旨在检测和表征此类中间体。学生和博士后研究协会参与了这项研究。因此，他们获得了重要的知识和技能，以准备进入科学/技术劳动力。