| 水分子间振动能量转移的物理描述 |
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| 引用本文： | 赵林,董涛,梁麦林. 水分子间振动能量转移的物理描述[J]. 天津大学学报(自然科学与工程技术版), 2006, 39(7): 871-873 |
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| 作者姓名： | 赵林 董涛 梁麦林 |
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| 作者单位： | [1]天津大学环境科学与工程学院,天津300072 [2]天津大学理学院,天津300072 [3]南开大学天津大学刘徽应用数学中心,天津300072 |
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| 基金项目： | 国家重点基础研究发展计划(973计划);国家自然科学基金 |
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| 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．
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| 关 键 词： | 水分子 能量转移 耦合振子 |
| 文章编号： | 0493-2137（2006）07-0871-03 |
| 收稿时间： | 2004-12-20 |
| 修稿时间： | 2004-12-202006-01-18 |
Physical Description of the Oscillation Energy Transfer Among Water Molecules |
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| ZHAO Lin,DONG Tao,LIANG Mai-lin. Physical Description of the Oscillation Energy Transfer Among Water Molecules[J]. Journal of Tianjin University(Science and Technology), 2006, 39(7): 871-873 |
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| Authors: | ZHAO Lin DONG Tao LIANG Mai-lin |
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| Affiliation: | 1. College of Environment Science and Engineering, Tianjin University, Tianjin 300072, China; 2. School of Sciences, Tianjin University, Tianjin 300072, China; 3. Liuhui Center far Applied Mathematics, Nankai University, Tianjin University, Tianjin 300072, China |
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| 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 energy 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 description of the energy transfer processes between water molecules. |
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| Keywords: | water molecule energy transfer coupled oscillators |
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