Kinetics of the reactions of bromine atoms with a series of aliphatic aldehydes at 298 K

被引：13

作者：

Szilagyi, I ^{[1
]}

Imrik, K ^{[1
]}

Dobe, S ^{[1
]}

Berces, T ^{[1
]}

机构：

[1] Hungarian Acad Sci, Cent Res Inst Chem, H-1025 Budapest, Hungary

来源：

BERICHTE DER BUNSEN-GESELLSCHAFT-PHYSICAL CHEMISTRY CHEMICAL PHYSICS | 1998年 / 102卷 / 01期

关键词：

aldehydes; Br atoms; chemical kinetics; elementary reactions; OH radicals; radicals;

D O I：

10.1002/bbpc.19981020110

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 kinetics of the reactions of Br(P-2(3/2)) With selected aldehydes, i.e, ethanal (1), propanal (2), 2-methyl-propanal (3), 2,2-dimethyl-propanal (4) and trichloroacetaldehyde (5) were studied at 298+/-2 K. Rate constants for overall reactions were measured using the fast flow technique with resonance fluorescence detection of Br. Complementary determinations were carried out by the laser flash photolysis method. The following rate constants were obtained in the kinetic measurements (+/-2 sigma): k(1)=(2.1+/-0.2)x10(12), k(2)=(4.3+/-0.4)x10(12), k(3)=(6.3+/-1.4)x10(12), k(4)=(8.5+/-0.8)x10(12), k(5)1x10(9), all in cm(3) mol(-1) s(-1) units. The probable mechanism for the reactions of bromine atoms with aliphatic aldehydes has been discussed.

引用

页码：79 / 84

页数：6

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