论文部分内容阅读
在相对碰撞平动能为0.05eV的分子束实验条件下,研究了CO(a)+NO(X)的E-E传能通道。通过测量观测区域的发射光谱,求得了反应物CO(a,v)的相对振动布居。利用计算机模拟传能产物NO(A-X)和NO(B-X)的发射光谱求得了它们初生态的相对振动布居、转动温度以及传能通道的分支比γ/β=1.3±0.3。同时提出传能是经过中间复合物OCNO过程可用电子交换机理进行解释。利用NO(B2Π,v’=0,J’=10.5,/a4Π,v’=8,J’=10.5)“门道”传能的磁场“冻结”效应,首次在实验上成功地证实了传能产物亚稳态NO(a)的存在。根据“门道”传能的发射强度与NO(B-X)的发射强度之比,求得了传能产生“暗”、“明”通道NO(a,v’=8)/NO(B,v’=0)的分支比为2。因此,CO(a)+NO(X)的电子传能除生成NO(A,B)辐射态外,生成亚稳态NO(a)也是一个重要的传能通道。
The E-E channel of CO (a) + NO (X) was studied under the condition of molecular beam with a relative collision translational energy of 0.05eV. By measuring the emission spectra of the observed region, the relative vibrational population of the reactant CO (a, v) was obtained. The relative vibrational population, rotational temperature and branch ratio γ / β of energy transfer channels were obtained by simulating the emission spectra of NO (A-X) and NO (B-X) 0.3. At the same time, it is proposed that the energy transfer can be explained by the electronic exchange mechanism through the intermediate compound OCNO process. The magnetic “freeze” effect of “doorway” energy transfer using NO (B2Π, v ’= 0, J’ = 10.5, / a4Π, v ’= 8, J’ = 10.5) was first experimentally successful Confirms the existence of metastable NO (a). According to the ratio of the emission intensity of the “doorway” energy transfer to the emission intensity of NO (B-X), the energy density of the “dark” and “bright” channels NO (a, v ’= 8) / NO ’= 0) branch ratio of 2. Therefore, in addition to the NO (A, B) emission state, the electron transfer energy of CO (a) + NO (X) is also an important energy transfer channel.