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在微观反应动力学领域,研究反应物内能和平动能对产物能态布居的影响具有重大的意义。前人已较详细地考察了反应物平动能、振动能及转动能对产物内能态布居的影响,但有关反应物电子态能量对基电子态产物内能态布居影响的文献报道甚少。因为在大多数电子激发态金属原子与卤化物或氧化物的反应中,既可以形成电子激发态产物,又可形成基电子态产物,而来自电子激发态产物的辐射不仅给基电子态产物的激光诱导荧光(LIF)探测造成困难,而且影响初生基电子态产物的能态布居。据此,本文选择了小化学发光截面的反应(Ca~3P)+CH_2Cl_2、CHCl_3,利用直流放电选态和LIF技术,研究电子态能量对基电子态产物内能态布居的影响。
In the field of microscopic reaction kinetics, it is of great significance to study the influence of internal kinetic energy of kinetic energy of reactants on the population of energy products. It has been reported in more detail in the literature that the kinetic energy of the reactants, which is related to the energy states of the reactants, less. Because most electronically excited metal atoms react with halides or oxides to form both electronically excited and substrate electron states while the radiation from the electronically excited state not only gives the Laser-induced fluorescence (LIF) detection caused difficulties, but also affect the nascent elementary electronic state energy products resident. In this paper, we selected the small chemiluminescence cross-section reactions (Ca ~ 3P) + CH_2Cl_2, CHCl_3, the use of DC discharge LIF and LIF techniques to study the influence of electron energy on the electronic structure of the product within the population.