State-to-State Photochemistry and Vibrational Spectroscopy of Molecular Complexes

分子复合物的状态光化学和振动光谱

• 批准号: 8900307
• 负责人: Roger Miller
• 金额: $ 80.57万
• 依托单位: University of North Carolina at Chapel Hill
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1989
• 资助国家: 美国
• 起止时间: 1989-05-15 至 1994-10-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8900307&HistoricalAwards=false
• 关键词: State; Photochemistry; Vibrational; Spectroscopy; Molecular

Professor Miller is supported by the Experimental Physical Chemistry Program in experimental investigations on both the dynamics and spectroscopy of a variety of neutral binary, tertiary, and higher order molecular complexes. Information is obtained on the structures of these complexes and on the flow of energy between various internal and translational (dissociative) degrees of freedom for vibrationally-excited complexes. Opto-thermal detection techniques are used to measure photofragment angular distributions and obtain state-to-state photodissociation cross sections following vibrational excitation of one molecule in a complex. Results are yielding insight into rotational state correlations between two departing photofragment molecules and also give accurate values for the complex dissociation energies. Extensions are planned that will allow probing of higher vibrational states of both these complexes and stable molecules through a two laser IR-IR double resonance experiment. For the complexes, the double resonance technique will also allow measurements of predissociation lifetimes in real time.

米勒教授得到了实验物理学的支持。 化学计划在实验研究上， 各种中性双星的动力学和光谱学， 三级和更高级的分子复合物。 信息 得到的这些配合物的结构和流动 各种内部和平移之间的能量 振动激励的（分离）自由度 配合物 光热探测技术用于测量 光碎片的角分布，并获得状态到状态 振动光解离截面 激发复合物中的一个分子。 结果正在产生 深入了解两个 也能给出精确的数值 复杂的离解能。 计划延期 这将允许探测两者的更高振动状态， 这些配合物和稳定的分子通过两个激光IR-IR 双共振实验 对于复合物， 共振技术也将允许测量 在真实的时间中的预解离寿命。