采用从头计算二阶自旋一轨道多组态准简并微扰理论计算了CH4+O2体系中O2分子X^3∑g^--a^1△g,X^3∑g^--b^1∑g^+和b^1∑g^+a^1△g的碰撞-诱导跃迁几率,分析了O2分子振动对跃迁几率的影响,并与O2+H2模型的结果做了比较.
The collision-induced transition probability for X3∑g^- - a^1△g, X^3∑g^- - b^1∑g^+ and b^1 ∑g^+ - a^1△g transition in O2 were calculated using second order spin-obit multiconfigurational quasidegenerate perturbation theory (SO-MCQDPT) . The vibrational effects to the transition probability in O2 were analyzed. The comparisons between CH4+O2 model in this work and H2 +O2 model were made.