MOLECULAR-BEAM MEASUREMENTS OF EMISSION SPECTRUM AND RADIATIVE LIFETIME OF N2 IN METASTABLE EPSILON3SIGMAG+ STATE

被引:54
作者
FREUND, RS
机构
[1] Bell Telephone Laboratories, Incorporated, Murray Hill
关键词
D O I
10.1063/1.1671620
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
Electron-impact excitation of a molecular beam of nitrogen was used to produce the metastable E 3∑g+ state. This state, which lies 11.87 eV above the ground state, has recently been observed in a number of electron-impact experiments. This paper reports the emission spectrum from the molecular beam, and identifies three forbidden electronic transitions, E 3∑g+ → A 3∑g+, E3∑g +→B3∏g and E3∑ g+→C3∏u. Approximate absolute transition probabilities are determined. The radiative lifetime of the E state is 270± 100 psec, and the equilibrium internuclear distance is 1.16±0.02 Å.
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页码:3734 / &
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