The thermal decomposition of haloacetic acids: A laser pyrolysis and semiempirical study

被引:9
作者
Hettema, H [1 ]
Hore, NR [1 ]
Renner, ND [1 ]
Russell, DK [1 ]
机构
[1] UNIV AUCKLAND,DEPT CHEM,AUCKLAND,NEW ZEALAND
关键词
D O I
10.1071/C96122
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Infrared laser-powered homogeneous pyrolysis, coupled with Fourier-transform infrared measurement of product distributions, has demonstrated that four different unimolecular mechanisms are significant in the initiation of gas-phase thermal decomposition of CH3COOH (1), CF3COOH (2), CH2ClCOOH (3), CHCl2COOH (4), CCl3COOH (5), CH2BrCOOH (6), and CH2ICOOH (7): decarboxylation and dehydration for (1); H-X elimination for (2)-(6); and C-X bond homolysis for (6) and (7). These conclusions are supported by the semiempirical calculation of activation energies for the possible pathways.
引用
收藏
页码:363 / 372
页数:10
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