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相空间矩运动方程应用于H_2O和H_2O_2分子内振动弛豫的研究中,结果表明:在OH键低振动激发态时,H_2O和H_2O_2分子的振动都表现出较强的局域模现象.H_2O分子的这种现象是由于强的势能非谐性造成的,而H_2O_2分子除上述原因外,还与两个OH键振动模间的复杂耦合有关.对于H_2O_2分子,当OH键的振动量子数大于6时,两个OH键振动模间能量能迅速互相传递,而当振动量子数小于6时,则表现出明显的局域模现象.
The phase space moment equation of motion was applied to the study of the intramolecular vibrational relaxation of H 2 O and H 2 O 2. The results show that the vibration of H 2 O and H 2 O 2 molecules show strong local mode phenomena in the OH vibrational low vibrational state. This phenomenon is due to the strong potential anharmonicity, and the H 2 O 2 molecule is also related to the complex coupling between the two OH-mode vibration modes in addition to the above reasons.For the H 2 O 2 molecule, when the vibrational number of OH bond is more than 6 , The energy between the two OH-mode vibration modes can be quickly transmitted to each other, while when the vibrational quantum number is less than 6, the apparent local mode phenomenon appears.