作　　者： ; ; (陈从香）; (马兴孝）;

机构地区： 中国科学技术大学化学与材料科学学院化学物理系

出　　处： 《Chinese Journal of Chemical Physics》 1994年第3期197-204,共8页

摘　　要： 用红外多光子激发(IRMPE)和原子荧光探测的方法,研究了下列体系中V→E传能过程:式中≠,*分别表示高振动激发态和电子激发态.根据不同实验条件下,由上述V→E传能产生的原子荧光衰减速率的测量,并用提出的动力学模型拟合实验数据,获得了C_2H_4~≠与Na,K之间的V→E传能速率常数及其它动力学过程的信息.本文探讨了上述V→E传能过程形成一种离子型络合物[N_a^+/K^+-C_2H_4]的可能性. The kinetic study of the V- E energy transfer from the ethylene molecule to sodium and potassium atoms have been successfully carried out with a new approach. In this work we proposed an energy group model for description of the kinetic processes between ethylene and alkali atoms. Based on this model, the V-E energy transfer rate constants and their temperature dependence for all the systems were obtained. It is found that these rate constants are nearly as fast as the gas kinetic rate constants and the temperature dependence is rather weak. The experimental results show 'that the suggested kinetic energy group model is reasonable and the fate equations correctly described the collision processes. The harpooning mechanism may be used to interpret above V-E energy transfer processes.

关 键 词： 离子型 络合物 传能 钠 钾

领　　域： [理学] [理学]