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Variationally Computed IR Line List for the Methyl Radical CH3

机译:甲基自由基CH3的变形计算的IR线列表

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摘要

We present the first variational calculation of a hot-temperature ab initio line list for the CH3 radical. It is based on a high-level ab initio potential energy surface and dipole moment surface of CH3 in the ground electronic state. The ro-vibrational energy levels and Einstein A coefficients were calculated using the general-molecule variational approach implemented in the computer program TROVE. Vibrational energies and vibrational intensities are found to be in very good agreement with the available experimental data. The line list comprises 9 127 123 ro-vibrational states (J <= 40) and 2 058 655 166 transitions, covering the wavenumber range up to 10 000 cm(-1) and should be suitable for temperatures up to T = 1500 K.
机译:我们介绍了CH3基团的热温AB初始线列表的第一个变分。 它基于地面电子状态下的CH3的高级AB初始能量表面和偶极力矩表面。 使用计算机程序流程中实现的一般分子变分方法计算RO-Viblation能量水平和爱因斯坦系数。 发现振动能量和振动强度与可用的实验数据非常好。 该线列表包括9 127 123 RO振动状态(J <= 40)和2 058 655 166过渡,覆盖高达10 000cm(-1)的波数范围,并且应该适合于高达T = 1500k的温度。

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