Air Force Research Laboratory, Space Vehicles Directorate, Kirtland AFB, New Mexico 87117, USA.
J Chem Phys. 2012 Apr 14;136(14):144314. doi: 10.1063/1.3702039.
Luminescence spectra are recorded for the reactions of Xe(+) + NH(3) and Xe(2+) + NH(3) at energies ranging from 11.5 to 206 eV in the center-of-mass (E(cm)) frame. Intense features of the luminescence spectra are attributed to the NH (A (3)Π(i)-X (3)Σ(-)), hydrogen Balmer series, and Xe I emission observable for both primary ions. Evidence for charge transfer products is only found through Xe I emission for both primary ions and NH(+) emission for Xe(2+) primary ions. For both primary ions, the absolute NH (A-X) cross section increases with collision energy before leveling off at a constant value, approximately 9 × 10(-18) cm(2), at about 50 eV while H-α emission increases linearly with collision energy. The nascent NH (A) populations derived from the spectral analysis are found to be independent of collision energy and have a constant rotational temperature of 4200 K.
记录了 Xe(+) + NH(3) 和 Xe(2+) + NH(3) 在质心 (E(cm)) 框架中能量范围从 11.5 到 206 eV 的反应的发光光谱。发光光谱的强烈特征归因于 NH(A(3)Π(i)-X(3)Σ(-))、氢巴尔默系列和 Xe I 发射，这两种初级离子都可观察到。只有通过两种初级离子的 Xe I 发射和 Xe(2+)初级离子的 NH(+)发射才能发现电荷转移产物的证据。对于两种初级离子，NH(A-X)截面的绝对截面随着碰撞能量的增加而增加，然后在大约 50 eV 时稳定在一个恒定值，约为 9×10(-18) cm(2)，而 H-α 发射则随碰撞能量线性增加。从光谱分析得出的初生 NH(A)种群被发现与碰撞能量无关，具有恒定的旋转温度为 4200 K。
