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水分子间振动能量转移的物理描述
Physical Description of the Oscillation Energy Transfer Among Water Molecules
【摘要】 用谐振子作为化学键的模型,水分子之间的能量转移过程可以描述为耦合谐振子系统.分子之间的能量转移相当于谐振子的能量从一个传递到另一个上.将水分子中HO键的振动以及水分子之间氢键的振动分别当作谐振子对待,从而具体描述了水分子之间的能量转移过程.理论估计能量转移的时间为60fs左右,与实验定出的100fs以下一致.该模型能够有效描述水分子间能量的传递.
【Abstract】 Regarding harmonic oscillator as a model of chemical bond,the energy transfer processes between water molecules can be described as a system of harmonic oscillators.The energy transfer between molecules was equal to the energy of harmonic oscillator transferring from one to another.The oscillations of the HO chemical bonds and the hydrogen bond between two water molecules were considered as harmonic oscillators,then the en- ergy transfer processes between water molecules were given.Theoretically,the energy transfer time is about 60 fs,which is consistent with the experimental value of less than 100 fs.The model could give a valid descrip- tion of the energy transfer processes between water molecules.
- 【文献出处】 天津大学学报 ,Journal of Tianjin University , 编辑部邮箱 ,2006年07期
- 【分类号】O641.1
- 【被引频次】3
- 【下载频次】233