THERMAL-ENERGY CHARGE-TRANSFER FROM HE+ TO O2 - KINETIC-ENERGY, NATURE, AND REACTIVITY OF THE O+ PRODUCT IONS

被引:38
作者
MAUCLAIRE, G [1 ]
DERAI, R [1 ]
FENISTEIN, S [1 ]
MARX, R [1 ]
JOHNSEN, R [1 ]
机构
[1] UNIV PITTSBURGH,DEPT PHYS & ASTRON,PITTSBURGH,PA 15260
关键词
D O I
10.1063/1.438023
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
From kinetic energy measurements in an ICR cell, the charge-transfer reaction between thermal He+ and O2 is shown to produce 64% of ground state O+ ions with 1.8 eV kinetic energy, and 36% of electronically excited O+* with 0.3 eV kinetic energy. These O+* react with O2 with a rate constant of 6.5 × 10-10cm3s-1. The nature of this excited state, 2D° or 2P°, is discussed. A resonant, long-distance electron jump explains all the experimental data. © 1979 American Institute of Physics.
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页码:4023 / 4026
页数:4
相关论文
共 22 条
[1]   SELECTED ION FLOW TUBE (SIFT) - TECHNIQUE FOR STUDYING ION-NEUTRAL REACTIONS [J].
ADAMS, NG ;
SMITH, D .
INTERNATIONAL JOURNAL OF MASS SPECTROMETRY AND ION PROCESSES, 1976, 21 (3-4) :349-359
[2]   PRODUCT-ION DISTRIBUTIONS FOR SOME ION-MOLECULE REACTIONS [J].
ADAMS, NG ;
SMITH, D .
JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 1976, 9 (08) :1439-1451
[3]   PRODUCT DISTRIBUTIONS FOR SOME THERMAL-ENERGY CHARGE-TRANSFER REACTIONS OF RARE-GAS IONS [J].
ANICICH, VG ;
LAUDENSLAGER, JB ;
HUNTRESS, WT ;
FUTRELL, JH .
JOURNAL OF CHEMICAL PHYSICS, 1977, 67 (10) :4340-4350
[4]  
EDQUIST O, 1970, PHYSICA SCRIPTA, V1, P25
[5]   ION-MOLECULE REACTION RATE STUDIES IN A FLOWING AFTERGLOW SYSTEM [J].
FARRAGHE.AL .
TRANSACTIONS OF THE FARADAY SOCIETY, 1970, 66 (570) :1411-+
[6]   OBSERVATION OF DISSOCIATIVE STATES OF O-2(+) BY THRESHOLD PHOTOELECTRON-PHOTOION COINCIDENCE [J].
GUYON, PM ;
BAER, T ;
FERREIRA, LFA ;
NENNER, I ;
TABCHEFOUHAILE, A ;
BOTTER, R ;
GOVERS, TR .
JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 1978, 11 (05) :L141-L144
[7]   ION-MOLECULE REACTIONS, HE++02 AND HE++N2, AT THERMAL ENERGIES AND ABOVE [J].
HEIMERL, J ;
JOHNSEN, R ;
BIONDI, MA .
JOURNAL OF CHEMICAL PHYSICS, 1969, 51 (11) :5041-&
[8]   MEASUREMENTS OF O-+ + N2 AND O-+ + O2 REACTION-RATES FROMM 300 DEGREES K TO 2 EV [J].
JOHNSEN, R ;
BIONDI, MA .
JOURNAL OF CHEMICAL PHYSICS, 1973, 59 (07) :3504-3509
[9]   PRODUCT ION DISTRIBUTIONS FOR CHARGE-TRANSFER REACTIONS HE++O2 AND HE++N2 AT THERMAL-ENERGY [J].
JOHNSEN, R ;
MACDONALD, JA ;
BIONDI, MA .
JOURNAL OF CHEMICAL PHYSICS, 1977, 66 (10) :4718-4719
[10]  
Locht R., 1974, International Journal of Mass Spectrometry and Ion Physics, V15, P361, DOI 10.1016/0020-7381(74)80035-5