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首页> 外文期刊>The journal of physical chemistry, A. Molecules, spectroscopy, kinetics, environment, & general theory >Ultrafast Energy Transfer from the Intramolecular Bending Vibration to Librations in Liquid Water
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Ultrafast Energy Transfer from the Intramolecular Bending Vibration to Librations in Liquid Water

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摘要

A theoretical study of the water bend-to-libration energy transfer in liquid H_2O has been performed by means of nonequilibrium classical molecular dynamics computer simulations. Attention has been focused on the time scale and mechanism of the decay of the fundamental H_2O bend vibration and the related issue of the decay of water librational (hindered rotational) excitations, including the important role of that for the excited molecule itself. The time scales found are 270 fs for the decay of the average energy of an H_2O molecule excited to the v = 1 state of the bending oscillator and less than 100 fs for excess rotational (librational) kinetic energy, both consistent with recent ultrafast infrared experimental results. The energy flow to the excited molecule rotation and through the first several solvent shells around the excited water molecule is discussed in some detail.

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  • 1. Liquid transfer Chugu [P] . 外国专利： JP4341239B2 . 2009-10-07

    机译：liquid transfer chu股

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