CALCULATIONS OF STRETCHING VIBRATIONAL ENERGYLEVELS OF THE CH3I MOLECULE BY A NONLINEAR MODEL

• 来源期刊: 中国物理(英文版)
• 学科: 物理学
• 关键词: CH3I stretching vibration nonlinear model
• 年，卷（期）: 2001,（4）
• 页码范围: 286-289
• 页数: 4页
• 分类号: O4
• 语种: 英文

摘要

A nonlinear model, i.e. the quantized discrete self-trapping equation, is applied to calculate the highly excited CH stretching vibrational energy levels of the CH3I molecule in the liquid phase at the electronic ground state up to n=8. The obtained results agree well with the experimental data and with those obtained from local mode model calculations. We note that the dominant feature of the methyl CH stretching vibrational energy levels of the CH3I molecule is a pattern of local mode pairs. When n ＞ 7, all the vibrational energy of the CH3 group can nearly be localized on a single CH bond.