Photophysical Investigations of Hydrogen Bonded Complexes in Solution

溶液中氢键配合物的光物理研究

• 批准号: 9303817
• 负责人: Richard Moog
• 金额: $ 11.5万
• 依托单位: Franklin and Marshall College
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1993
• 资助国家: 美国
• 起止时间: 1993-07-15 至 1997-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9303817&HistoricalAwards=false
• 关键词: Photophysical; Investigations; Hydrogen; Bonded; Complexes

9303817 Moog Richard S. Moog is supported by a grant from the Theoretical and Computational Chemistry Program to perform condensed phase spectroscopic studies. Two lines of research will be pursued. The first study will compare the rotational reorientation of Coumarin 102 dye in non-polar decalin with the reorientation lifetime in fluorinated alcohols to see what the effects of hydrogen bonding are on the reorientation times. The second study will examine the photoinduced double proton transfer reaction of hydrogen bonded 1-azacarbazole : alcohol complexes in alcohol solutions and in dilute aprotic solvents. Most of the work will employ time resolved fluorescence measurements. %%% The physical and chemical properties of solutes are profoundly influenced by the solution environment. The influence of solvent on chemical reactions and the dynamical processes which occur in solution have been widely investigated. This research has shown that, rather than providing an inert and static medium in which physical and chemical processes occur, the solvent often plays an active and crucial role in these processes. The investigvations to be performed by Moog will be specifically directed at understanding the role which intermolecular hydrogen bonding plays in solute reactivity and dynamics in solution. ***

9303817莫格理查德S. Moog得到了理论和计算化学计划的资助，以进行凝聚相光谱研究。 将进行两方面的研究。 第一项研究将比较香豆素102染料在非极性十氢化萘中的旋转再取向与在氟化醇中的再取向寿命，以了解氢键对再取向时间的影响。 第二项研究将考察氢键1-氮杂咔唑：醇复合物在醇溶液和稀非质子溶剂中的光诱导双质子转移反应。 大部分工作将采用时间分辨荧光测量。 溶质的物理和化学性质深受溶液环境的影响。 溶剂对溶液中化学反应和动力学过程的影响已被广泛研究。 这项研究表明，而不是提供一个惰性和静态的介质中发生的物理和化学过程中，溶剂往往在这些过程中发挥积极和关键的作用。 Moog将进行的解释将专门针对理解分子间氢键在溶液中溶质反应性和动力学中的作用。 ***