Determination of gas-phase ozonolysis rate coefficients of C8-14 terminal alkenes at elevated temperatures using the relative rate method

被引：8

作者：

McGillen, Max R. ^{[1
]}

Ghalaieny, Mohamed ^{[1
]}

Percival, Carl J. ^{[1
]}

机构：

[1] Univ Manchester, Ctr Atmospher Sci, Sch Earth Atmospher & Environm Sci, Manchester M13 9PL, Lancs, England

来源：

PHYSICAL CHEMISTRY CHEMICAL PHYSICS | 2011年 / 13卷 / 23期

关键词：

RATE CONSTANTS; ORGANIC-COMPOUNDS; OZONE; O-3;

D O I：

10.1039/c0cp02643c

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 ozonolysis of a suite of terminal alkenes ranging from C8-14 are determined in the gas phase at an elevated temperature of 395.9 +/- 1.2 K and a pressure of similar to 650 Torr using the EXTreme RAnge chamber (EXTRA). Rates are found to be invariant with carbon number, whilst literature measurements conducted under ambient conditions exhibited an increase in rate coefficient after 10 carbon atoms. These earlier findings appear to contradict the intuitive notion that the inductive effect is a short-range process operating over a maximum distance of a few carbon atoms. These new measurements support the hypothesis that operating under ambient conditions, kinetic measurements of condensable species can be influenced adversely by heterogeneous processes and should therefore be treated with caution.

引用

页码：10965 / 10969

页数：5