The Pyrolysis of Tetramethyltin
作者:
R. P. Johnson,
S. J. W. Price,
期刊:
Canadian Journal of Chemistry
(NRC Available online 1972)
卷期:
Volume 50,
issue 1
页码: 50-54
ISSN:0008-4042
年代: 1972
DOI:10.1139/v72-008
出版商: NRC Research Press
数据来源: NRC
摘要:
The pyrolysis of tetramethyltin has been studied in a toluene carrier flow system from 803–941 °K using total pressures of 10.6 to 52.4 mm. Contact times varied from 0.49 to 13.8 s and the amount of decomposition from 1.35–98.7%. The progress of the reaction was followed by measuring the amount of methane, ethane, ethylene, and ethylbenzene formed. No appreciable heterogeneous reaction was detected and the first order rates constants appear to have been determined at the high pressure limit. The quantity of undecomposed alkyl was also measured and was found to be in agreement with the product analysis if four methyl radicals are released for each molecule undergoing reaction.Least squares analysis giveswith an estimated uncertainty inEof ± 1 kcal mol−1. The activation energy should be a good approximation toD[(CH3)3Sn—CH3].
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