LIF detection of the IO-radical and kinetics of the reactions I+O3→IO+O2, O(3P)+I2+IO+I, O(3P)+CH3I→IO+CH3 and O(3P)+CF3I→IO+CF3 in the temperature range 230 to 310 K

被引：0

作者：

Holscher, D ^{[1
]}

Fockenberg, C ^{[1
]}

Zellner, R ^{[1
]}

机构：

[1] Univ Essen Gesamthsch, Inst Theoret & Phys Chem, D-45117 Essen, Germany

来源：

BERICHTE DER BUNSEN-GESELLSCHAFT-PHYSICAL CHEMISTRY CHEMICAL PHYSICS | 1998年 / 102卷 / 05期

关键词：

atmospheric chemistry; chemical kinetics; radicals;

D O I：

暂无

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：

Laser induced fluorescence (LIF) from the (2,0) and (3,0) band of the A(2)II(3/2)<--(XII3/2)-I-2 transition of IO was detected. Using this detection, the rate constants for the reactions (1) I+O-3-->IO+O-2, (2) O(P-3)+I-2-->IO+I, (3) O(P-3)+CH3I-->IO+CH3 and (4) O(P-3)+CF3I-->IO+CF3 were determined. Reactions (1), (3) and (4) were investigated over the temperature range 230 to 310 K, whereas reaction (2) was measured only at 295 K. The rate constants for these reactions can be described by the following Arrhenius expressions: k(1)(T)=(1.6+/-1.2).10(-11).exp[-(750+/-194)K/T]cm(3) molecule(-1)s(-1) k(2)(295K)=(1.3+/-0.15).10(-10)cm(3) molecule(-1) s(-1) k(3)(T)=(6.2+/-1).10(-12).exp[(341+/-37)K/T]cm(3) molecule(-1) s(-1) k(4)(T)=(1.3+/-0.5).10(-11).exp[-(266+/-85)K/T] cm(3) molecule(-1) s(-1).

引用

页码：716 / 722

页数：7

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