EVIDENCE FOR AN INFLUENCE OF ROTATIONAL ENERGY ON THE RATE CONSTANTS FOR THE REACTION OF AR+(2P3/2) WITH N-2

被引:42
作者
VIGGIANO, AA
VANDOREN, JM
MORRIS, RA
PAULSON, JF
机构
[1] Geophysics Laboratory/LID, Ionospheric Physics Division, Hanscom AFB
[2] GL, Systems Integration Engineering, Inc., Lexington, MA
关键词
D O I
10.1063/1.458666
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Rate constants for the charge transfer reaction of Ar+( 2P3/2) with N2 were measured as a function of average center-of-mass kinetic energy (〈KEcm〉) at three temperatures. The rate constants increase rapidly with (〈KE cm〉) at all temperatures. The thermal activation energy is derived to be 0.07 eV, which is approximately the value of the endothermicity of the reaction when N2+ (v = 1) is produced. The rate constants vary with temperature at a particular 〈KEcm〉, indicating either an effect due to differing energy distributions in the drift tube at different temperatures or that the reactivity depends on the rotational temperature of N2. Comparing the data at constant average total energy indicates that translational and rotational energy have a similar effect on the reactivity. © 1990 American Institute of Physics.
引用
收藏
页码:4761 / 4765
页数:5
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