DE-EXCITATION OF ELECTRONICALLY EXCITED SODIUM BY NITROGEN AND SOME OTHER DIATOMIC MOLECULES.
DE-EXCITATION OF ELECTRONICALLY EXCITED SODIUM BY NITROGEN AND SOME OTHER DIATOMIC MOLECULES.
复制标题
氮和一些其他双原子分子对电子激发的钠进行去激发。
DOI：
10.1063/1.1671775
复制
发表时间：
1969
期刊：
影响因子：
--
通讯作者：
F. Gilmore
中科院分区：
文献类型：
--
作者：
E. Bauer;E. R. Fisher;F. Gilmore
摘要：对钠被氮退激的截面进行了半定量计算，作为初始动能和最终振动量子数 v(f) 的函数。观察到的大总截面是气体动力学级的，可以用中间离子态来解释，包括 Na(+) 和 N2(-)(v = v(-))。这种状态在原子和分子无限分离的情况下是不稳定的；但是，由于库仑吸引力，它在低于约 3A 的距离处变得稳定。由于 N2(-)(v(-)) 的振动结构和最终状态 N2(v(f))，经典扩散被认为是通过二维势能曲线网络的概率振幅，该网络以振动结构 v(-) 和 v(f) 以及电子态作为参数。对各种入射能量和冲击参数以及 Na(+) + N2(-) 络合物的极化率的假设值进行了计算。还给出了 CO 和 O2 猝灭 Na(3 双峰 P) 以及 N2 猝灭 Na(4 双峰 P) 的横截面的结果。所有结果都具有相同的一般特征：总横截面属于气体动能级，并且仅微弱地依赖于动能。 （作者）
Abstract : A semiquantitative calculation was made of the cross sections for the de-excitation of sodium by nitrogen as a function of initial kinetic energy and final vibrational quantum number v(f). The large observed total cross section, which is of gas kinetic order, can be explained by an intermediate ionic state, involving Na(+) and N2(-)(v = v(-)). This state is unstable at infinite separation of the atom and molecule; but, because of the Coulomb attraction, it becomes stable at distances below approximately 3A. As a result of the vibrational structure of N2(-)(v(-)) and of the final state, N2(v(f)), a classical diffusion is considered of the probability amplitudes through a two-dimensional network of potential-energy curves which have the vibrational structure, v(-) and v(f), and the electronic state as parameters. The calculations were made for a variety of incident energies and impact parameters and assumed values of the polarizability of the Na(+) + N2(-) complex. Results are also presented regarding cross sections for the quenching of Na(3 doublet P) by CO and O2 and of Na(4 doublet P) by N2. All the results have the same general character: The total cross sections are of gas kinetic order, and depend only weakly on kinetic energy. (Author)