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Dynamics of Electronically Excited States. Models for Chemical Reactivity

Dynamics of Electronically Excited States. Models for Chemical Reactivity
电子激发态的动力学。
批准号:
8912365
负责人:
David Pratt
金额:
$27.64万
依托单位:
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
项目状态:
已结题
起止时间:
1989-11-15 至 1993-04-30

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中文摘要
翻译
实验物理化学计划支持普拉特教授的研究小组继续研究有机大分子的高分辨率电子光谱。从这些研究中获得的信息正在导致重大的定量测试,并在我们对大分子中分子间能量流动的理解方面取得显著的质量改进。在所研究的激发能为3-4 eV,光谱分辨率为几MHz时,被激发电子态的离散自旋-旋转-振动能级被嵌入一个或多个较低电子态的较高密度流形(甚至是准连续谱)中。这些流形之间的耦合允许化学上有趣的过程快速发生;研究试图从本征态分辨光谱中提取关于这些耦合的信息。
英文摘要
The Experimental Physical Chemistry Program supports the research group of Professor Pratt in a continued investigation of high-resolution electronic spectroscopy of large organic molecules. The information gained from these investigations is leading to significant quantitative tests and dramatic qualitative improvements in our understanding of intermolecular energy flow in large molecules. At the studied excitation energies of 3-4 eV and the spectroscopic resolution of a few MHz, the discrete spin-rotation-vibration energy levels of excited electronic states are imbedded in a higher density manifold (or even a quasi-continuum) of levels belonging to one or more lower electronic states. Couplings between these manifolds permit rapid occurrence of chemically interesting processes; the research attempts to extract information about these couplings from eigenstate-resolved spectra.
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Dynamics of Electronically Excited States - Biomolecules in the Gas Phase
Dynamics of Electronically Excited States - Biomolecules in the Gas Phase
  • 批准号:
    0911117
  • 项目类别:
    Continuing Grant
  • 资助金额:
    $47.9万
  • 财政年份:
    2009
  • 负责人:
    David Pratt
  • 依托单位:
Dynamics of Electronically Excited States - Biomolecules in the Gas Phase
  • 批准号:
    0615755
  • 项目类别:
    Continuing Grant
  • 资助金额:
    $52.96万
  • 财政年份:
    2006
  • 负责人:
    David Pratt
  • 依托单位:
Collaborative Research: Development of Chirped-Pulse Fourier Transform Microwave Spectrometers for Applications in Biomolecule Electronic Spectroscopy
  • 批准号:
    0618740
  • 项目类别:
    Standard Grant
  • 资助金额:
    $23.16万
  • 财政年份:
    2006
  • 负责人:
    David Pratt
  • 依托单位:
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