Dynamics and structure of aromatic molecular van der Waals complexes
Dynamics and structure of aromatic molecular van der Waals complexes
复制标题
芳香族分子范德华配合物的动力学和结构
DOI：
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发表时间：
1993
期刊：
影响因子：
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通讯作者：
M. R. Topp
中科院分区：
文献类型：
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作者：
M. R. Topp
摘要 分子间力对能量传递过程的影响以及分子能级的微妙变化可以深刻地影响分子的光化学和光生物学特性。在超音速喷射条件下分离的分子聚集体提供了以在凝聚介质中不可能的方式检查分子相互作用的机会，因为可以在非常低的内部温度下制备小的、有组织的分子排列。许多当代光谱实验试图了解小聚集体的详细结构以及限制内部运动的势垒。涉及簇中构象重排和微观光化学的内部弛豫过程已在几个案例中成功地通过时间解决。在较高能量下，振动预解离研究传达了有关分子间力强度的有用信息。这种类型的实验不断被比较，并提供新的机会......
Abstract The effect of intermolecular forces on energy transfer processes, and subtle changes in molecular energy levels can profoundly influence molecular photochemical and photobiological properties. Molecular aggregates isolated under supersonic jet conditions offer opportunities to examine molcular interactions in a way not possible in condensed media, because small, organized arrangements of molecules can be prepared at very low internal temperatures. Many contemporary spectroscopic experiments seek to understand the detailed structures of small aggregates and the potential energy barriers that restrict internal motion. Internal relaxation processes involving conformational rearrangement and microscopic photochemistry in clusters have successfully been time resolved in several cases. At higher energies, vibrational predissoeiation studies convey useful information about the strengths of intermolecular forces. Experiments of this type are constantly being compared with, and offer new opportunities to ...