On the formation of benzene oxide/oxepin in the gas-phase reaction of OH radicals with benzene

被引：44

作者：

Berndt, T ^{[1
]}

Böge, O ^{[1
]}

Herrmann, H ^{[1
]}

机构：

[1] Inst Troposhareforsch EV, D-04303 Leipzig, Germany

来源：

CHEMICAL PHYSICS LETTERS | 1999年 / 314卷 / 5-6期

关键词：

D O I：

10.1016/S0009-2614(99)01041-6

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：

Product formation in the gas-phase reaction of OH radicals with benzene was studied under flow-tube conditions at 13 and 100 mbar at 298 K in O-2/He mixtures using direct MS, on-line FT-IR spectroscopy and GC-MS/FID detection. Benzene was used in a large excess, preventing consecutive reactions of products. Under all experimental conditions investigated there was no clear indication for a formation pathway for benzene oxide/oxepin; the observed yield was < 0.03 (FT-IR) and <0.01 (GC-MS). Observed products were CO: 0.30 +/- 0.13, phenol: 0.23 +/- 0.07, formic acid: 0.13 +/- 0.05, p-benzoquinone: 0.055 +/- 0.009, and unidentified carbonyls: 0.59 +/- 0.11 (yields at 100 mbar). (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：435 / 442

页数：8

共 32 条

[1] RATE CONSTANTS FOR THE GAS-PHASE REACTIONS OF CIS-3-HEXEN-1-OL, CIS-3-HEXENYLACETATE, TRANS-2-HEXENAL, AND LINALOOL WITH OH AND NO3 RADICALS AND O-3 AT 296+/-2 K, AND OH RADICAL FORMATION YIELDS FROM THE O-3 REACTIONS [J].