KINETIC AND PRIMARY PRODUCT STUDIES OF THE REACTION OF O (P-3) WITH STYRENE IN THE GAS-PHASE

被引：9

作者：

BUCHTA, C

FRERICHS, H

STUCKEN, DV

TAPPE, M

WAGNER, HG

机构：

来源：

BERICHTE DER BUNSEN-GESELLSCHAFT-PHYSICAL CHEMISTRY CHEMICAL PHYSICS | 1993年 / 97卷 / 05期

关键词：

CHEMICAL KINETICS; ELEMENTARY REACTIONS; GASES; MASS SPECTROMETRY; RADICALS;

D O I：

10.1002/bbpc.19930970503

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 rates of the reaction of styrene with atomic oxygen have been measured in a discharge flow system with mass spectrometric detection. The measurements were carried out under oxygen atom excess in the temperature range 298 K < T < 873 K. The main reaction channel at room temperature is O atom addition to the vinyl side chain, yielding as main product (identified by mass spectrometric product analysis) styrene oxide. Towards higher temperatures O atom addition to the aromatic ring as a second reaction channel becomes more important. Using Hammett plots the following Arrhenius expressions for the addition to the aromatic ring (k(ar)) and to the alkene double bond (k(db)) of the side chain can be derived: k(ar)(T) = (1.70 +/- 0.34) . 10(13) . exp(-2051 +/- 205/T) cm3 mol-1 s-1 k(dp)(T) = (0.14 +/- 0.03) . 10(13) . exp(+198 +/- 20/T) cm3 mol-1 s-1. First experiments with indene give similar results, showing a somewhat higher reactivity for this molecule compared to styrene.

引用

页码：658 / 662

页数：5

共 28 条

[11] REACTIONS OF FLUOROBENZENE, CHLOROBENZENE AND BROMOBENZENE WITH ATOMIC OXYGEN (O-3P) IN THE GAS-PHASE [J].

FRERICHS, H ;

TAPPE, M ;

WAGNER, HG .

ZEITSCHRIFT FUR PHYSIKALISCHE CHEMIE NEUE FOLGE, 1989, 162 :147-159

[12]

FRERICHS H, 1989, Z NATURFORSCH A, V44, P1119

[13]

FRERICHS H, 1990, 23 S INT COMB COMB I, P21

[14]

FRERICHS H, 1990, BER BUNSEN PHYS CHEM, V94, P94

[15] AN INVESTIGATION OF THE REACTION BETWEEN O(P-3) AND TOLUENE AT HIGH-TEMPERATURES [J].

HOFFMANN, A ;

KLATT, M ;

WAGNER, HG .

ZEITSCHRIFT FUR PHYSIKALISCHE CHEMIE NEUE FOLGE, 1990, 168 :1-12

[16]

HUIE RE, 1988, J PHYS CHEM REF DATA, V17

[17]

KOCH R, 1992, IN PRESS 24TH S INT

[18] AN INVESTIGATION OF THE REACTION BETWEEN O(P-3) AND BENZENE AT HIGH-TEMPERATURES [J].

LEIDREITER, HI ;

WAGNER, HG .

ZEITSCHRIFT FUR PHYSIKALISCHE CHEMIE NEUE FOLGE, 1989, 165 :1-7

[19]

Lias SG, 1988, J PHYS CHEM REF DATA, V17

[20] HYDROCARBON BOND-DISSOCIATION ENERGIES [J].

MCMILLEN, DF ;

GOLDEN, DM .

ANNUAL REVIEW OF PHYSICAL CHEMISTRY, 1982, 33 :493-532

← 1 2 3 →