Specificity and Non-Specificity in the Sensitized CO2-Laser-Induced Reaction of Tetrachloroethene

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Title:Specificity and Non-Specificity in the Sensitized CO2-Laser-Induced Reaction of Tetrachloroethene
Creators:
Earl, Boyd L.
Titus, Richard L.
Journal or Publication Title:
Collection of Czechoslovak Chemical Communications, 66, 11, pp. 1593-1602
Uncontrolled Keywords:Sensitizers, Laser chemistry, Chloroalkenes, Tetrachloroethene, Specificity, Chlorinated compounds

Abstract

Previous workers have investigated the reaction of tetrachloroethene using thermal initiation and CO<sub>2</sub>-laser initiation <i>via</i> sensitizing species. In both instances, the principal product was found to be hexachlorobenzene. One group reported evidence of laser specificity in this reaction, in that BCl<sub>3</sub> acted as a sensitizer to produce hexachlorobenzene as the principal product, but SF<sub>6</sub> and BBr<sub>3</sub> did not. We have found that specificity is highly dependent on reaction conditions. We reproduced the previous results using similar experimental conditions, but under different conditions, we found that the specificity is lost, with all three sensitizers which we used (BCl<sub>3</sub>, SF<sub>6</sub>, and SiF<sub>4</sub>) sensitizing the reaction to produce mainly hexachlorobenzene. There were some differences among the sensitizers, as, for example, the fact that SF<sub>6</sub> produced the most nearly pure hexachlorobenzene product. <p>

Title:Specificity and Non-Specificity in the Sensitized CO2-Laser-Induced Reaction of Tetrachloroethene
Creators:
Earl, Boyd L.
Titus, Richard L.
Uncontrolled Keywords:Sensitizers, Laser chemistry, Chloroalkenes, Tetrachloroethene, Specificity, Chlorinated compounds
Divisions:Life and Chemical Sciences > Institute of Organic Chemistry and Biochemistry > Collection of Czechoslovak Chemical Communications
Journal or Publication Title:Collection of Czechoslovak Chemical Communications
Volume:66
Number:11
Page Range:pp. 1593-1602
ISSN:0010-0765
E-ISSN:1212-6950
Publisher:Institute of Organic Chemistry and Biochemistry
Related URLs:
URLURL Type
http://dx.doi.org/10.1135/cccc20011593UNSPECIFIED
ID Code:1878
Item Type:Article
Deposited On:06 Feb 2009 17:13
Last Modified:06 Feb 2009 16:13

Citation

Earl, Boyd L.; Titus, Richard L. (2001) Specificity and Non-Specificity in the Sensitized CO2-Laser-Induced Reaction of Tetrachloroethene. Collection of Czechoslovak Chemical Communications, 66 (11). pp. 1593-1602. ISSN 0010-0765

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