Flow tube/LIF measurements of the rate constants for the reactions with NO of CF3O and CF3O2 radicals

被引：21

作者：

Bourbon, C ^{[1
]}

Brioukov, M ^{[1
]}

Hanoune, B ^{[1
]}

Sawerysyn, JP ^{[1
]}

Devolder, P ^{[1
]}

机构：

[1] UNIV SCI & TECHNOL LILLE,LAB CINET & CHIM COMBUST,CNRS,URA 876,F-59655 VILLENEUVE DASCQ,FRANCE

来源：

CHEMICAL PHYSICS LETTERS | 1996年 / 254卷 / 3-4期

关键词：

D O I：

10.1016/0009-2614(96)00277-1

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：

The rate constants for the reactions CF3O2 + NO --> CF3O + NO2 (1) and CF3O + NO --> products (2) have been measured at room temperature using a fast flow reactor associated with a monitoring of CF3O radicals by laser induced fluorescence (LIF); for the measurement of k(1), CF3O radicals are prepared by the discharge flow technique in the reactive system F/CF3H/O-2/NO; the average value is k(1) = (1.76 +/- 0.35) X 10(-11) cm(3) molecule(-1) s(-1). For reaction (2), CF3O radicals are prepared by another source: the thermolysis of the dimer CF3OOCF3 and the derived rate constant is k(2) = (4.7 +/- 0.9) X 10(-11) cm(3) molecule(-1) s(-1). Our results are in reasonable agreement with recent measurements using different techniques.

引用

页码：203 / 212

页数：10

共 29 条

[1]

[Anonymous], 1987, Montreal Protocol on Substances That Deplete the Ozone Layer, Final Act

[2] KINETICS OF THE REACTIONS OF THE CF3O RADICAL WITH ALKANES [J].

BARONE, SB ;

TURNIPSEED, AA ;

RAVISHANKARA, AR .

JOURNAL OF PHYSICAL CHEMISTRY, 1994, 98 (17) :4602-4608

[3] CHEMICAL IONIZATION MASS-SPECTROMETRIC STUDIES OF THE GAS-PHASE REACTIONS CF3O2+NO, CF3O+NO, AND CF3O+RH [J].

BEVILACQUA, TJ ;

HANSON, DR ;

HOWARD, CJ .

JOURNAL OF PHYSICAL CHEMISTRY, 1993, 97 (15) :3750-3757

[4] FLASH-PHOTOLYSIS TIME-RESOLVED MASS-SPECTROMETRIC INVESTIGATIONS OF THE REACTIONS OF CF3O2 AND CF3O RADICALS WITH NO [J].

BHATNAGAR, A ;

CARR, RW .

CHEMICAL PHYSICS LETTERS, 1994, 231 (4-6) :454-459

[5]

BIGGS P, 1993, STEP HALOCSIDE AFEAS

[6]

BOURBON C, 1995, CR HEBD ACAD SCI, V322, P181

[7] FTIR SPECTROSCOPIC STUDY OF THE REACTION OF CF3O WITH NO - EVIDENCE FOR CF3O+NO-]CF2O+FNO [J].

CHEN, J ;

ZHU, T ;

NIKI, H .

JOURNAL OF PHYSICAL CHEMISTRY, 1992, 96 (15) :6115-6117

[8]

DEMORE WB, JPL PUBLICATION, V92, P20

[9] REACTIONS OF CHLOROFLUOROMETHYL PEROXY-RADICALS WITH NO - A KINETIC-STUDY IN THE TEMPERATURE-RANGE 230-430K [J].

DOGNON, AM ;

CARALP, F ;

LESCLAUX, R .

JOURNAL DE CHIMIE PHYSIQUE ET DE PHYSICO-CHIMIE BIOLOGIQUE, 1985, 82 (04) :349-352

[10]

ELMAIMOUNI L, 1994, THESIS U SCI TECHNOL

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