Kinetics of the reactions of IO with HO2 and O(3P)

被引:16
作者
Canosa-Mas, CE [1 ]
Flugge, ML [1 ]
Shah, D [1 ]
Vipond, A [1 ]
Wayne, RP [1 ]
机构
[1] Univ Oxford, Phys & Theoret Chem Lab, Oxford OX1 3QZ, England
关键词
iodine; IO; HO2; O(P-3); discharge-flow; resonance fluorescence;
D O I
10.1023/A:1006262306459
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
A discharge-flow tube coupled with resonance fluorescence and chemiluminescence detection has been used to investigate the reactions IO + HO2 --> products (1) and IO + O(P-3) --> I + O-2 (2), at T = 296 + 1 K and P = 1.7 - 2 Torr. The rate constants k(1) and k(2) have been found to be (7.1 + 1.6) x 10(-11) cm(3) molecule(-1) s(-1) and (1.35 +/- 0.15) x 10(-10) cm(3) molecule(-1) s(-1), respectively.
引用
收藏
页码:153 / 162
页数:10
相关论文
共 12 条
[1]   Kinetics of the reaction of CF3O2 radicals with O(P-3) atoms [J].
Biggs, P ;
CanosaMas, CE ;
Shallcross, DE ;
Vipond, A ;
Wayne, RP .
JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS, 1997, 93 (15) :2477-2480
[2]   Kinetics of the reactions of CF3O2 with OH, HO2 and H [J].
Biggs, P ;
CanosaMas, CE ;
Shallcross, DE ;
Vipond, A ;
Wayne, RP .
JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS, 1997, 93 (16) :2701-2705
[3]  
CANOSAMAS CE, 1998, UNPUB
[4]   Potential impact of iodine on tropospheric levels of ozone and other critical oxidants [J].
Davis, D ;
Crawford, J ;
Liu, S ;
McKeen, S ;
Bandy, A ;
Thornton, D ;
Rowland, F ;
Blake, D .
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 1996, 101 (D1) :2135-2147
[5]  
DEMORE WB, 1994, JPL PUBLICATION, V9426
[6]   Reactions of O(P-3) with alkyl iodides: Rate coefficients and reaction products [J].
Gilles, MK ;
Turnipseed, AA ;
Talukdar, RK ;
Rudich, Y ;
Villalta, PW ;
Huey, LG ;
Burkholder, JB ;
Ravishankara, AR .
JOURNAL OF PHYSICAL CHEMISTRY, 1996, 100 (33) :14005-14015
[7]   KINETICS OF THE REACTION OF IO RADICALS WITH HO2 RADICALS AT 298-K [J].
JENKIN, ME ;
COX, RA ;
HAYMAN, GD .
CHEMICAL PHYSICS LETTERS, 1991, 177 (03) :272-278
[8]   ABSORPTION CROSS-SECTIONS, KINETICS OF FORMATION, AND SELF-REACTION OF THE IO RADICAL PRODUCED VIA THE LASER PHOTOLYSIS OF N2O/I-2/N-2 MIXTURES [J].
LASZLO, B ;
KURYLO, MJ ;
HUIE, RE .
JOURNAL OF PHYSICAL CHEMISTRY, 1995, 99 (30) :11701-11707
[9]   KINETIC-STUDY OF THE REACTIONS IO+HO2 AND IO+NO2 AT 298-K [J].
MAGUIN, F ;
LAVERDET, G ;
LEBRAS, G ;
POULET, G .
JOURNAL OF PHYSICAL CHEMISTRY, 1992, 96 (04) :1775-1780
[10]  
PAYNE WA, 1997, 4 INT C CHEM KIN GAI