RELAXATION OF VIBRATIONALLY EXCITED IONS O-2(+)(UPSILON) AND NO+(UPSILON) IN COLLISIONS WITH HE

被引:4
|
作者
POGREBNYA, SK
FREYSINGER, W
HANSEL, A
KRIEGEL, M
LINDINGER, W
机构
[1] UNIV INNSBRUCK, INST IONENPHYS, A-6020 INNSBRUCK, AUSTRIA
[2] BYELARUSSIAN ACAD SCI, INST HEAT & MASS TRANSFER, 220072 MINSK, BELARUS
关键词
SELECTED ION FLOW DRIFT TUBE; VIBRATIONALLY EXCITED IONS; QUENCHING RATE COEFFICIENTS;
D O I
10.1016/0168-1176(93)87032-N
中图分类号
O64 [物理化学(理论化学)、化学物理学]; O56 [分子物理学、原子物理学];
学科分类号
070203 ; 070304 ; 081704 ; 1406 ;
摘要
Vibrational quenching rate coefficients k(q) have been measured from thermal energy to 0.3 eV mean relative kinetic energy KE(cm) for NO+(v = 1 or 4) and O-2(+) (v = 1 or 2) ions in collisions with He by using a monitor ion technique in a selected ion flow drift tube. All these values for k(q) increase dramatically with increasing KE(cm). These quenching processes have also been investigated theoretically by using simple collinear models which yield rate coefficients in good agreement with the measured values.
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页码:89 / 99
页数:11
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