The Photo-oxidation of Liquid Carbon Tetrachloride

Lyons, Ernest H.; Dickinson, Roscoe G.

doi:10.1021/ja01306a018

Cited by 16 publications

(3 citation statements)

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“…Photochemical oxidation also leads to phosgene. Hydrolysis to carbon dioxide and hydrogen chloride is the principal result in a moist atmosphere [20]. Liquid tetrachloromethane has only a very minimal tendency to hydrolyze in water at room temperature (half-life ca.…”

Section: Chemical Propertiesmentioning

confidence: 99%

Chloromethanes

Rossberg¹,

Lendle²,

Pfleiderer³

et al. 2011

Ullmann's Encyclopedia of Industrial Chemistry

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Section: Chemical Propertiesmentioning

confidence: 99%

Chloromethanes

Rossberg¹,

Lendle²,

Pfleiderer³

et al. 2011

Ullmann's Encyclopedia of Industrial Chemistry

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“…The products of this decomposition (Cl' and CC13') then form phosgene if 0 2 is present, possibly according to the mechanism of Lyons and Dickinson (17), and (or) attack the parent ketone. Thus the relative yields of both phosgene and decomposition measure the efficiency of this process, whereas the similarity of the D I P ratios merely indicates the equal ease with which the parent a,p-unsaturated ketones are attacked (more decomposition for those more efficient in causing CCl4 to decompose).…”

Section: Results a N D Discussionmentioning

confidence: 99%

Photochemical studies of α,β-unsaturated ketones in carbon tetrachloride solution

Mettee¹

1967

Can. J. Chem.

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Phosgene has been identified by infrared spectroscopy as one of the major products of both continuous and flash photolyses of dilute, oxygenated CC14 solutions of six a,@-unsaturated ketones at wavelengths longer than 3 000 A. This product is absent from degassed solutions photolyzed similarly. Acetone, benzophenone, naphthalene, and anthracene show parallel behavior. s-trans ketones appear to be more effective in causing the CC14 decomposition than the s-cis species. The photosensitized decomposition of CC14 is a possible mechanism for this common behavior.

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“…35,36 We attribute the formation of a miniscule amount of C 2 Cl 6 in the absence of electron irradiation to either photon-or surfaceinduced reactions. We base this conjecture on previous photochemistry 46,47 and surface chemistry 42,48,49 studies of CCl 4 . Electron-induced radiolysis of CCl 4 , however, is the dominant mechanism for the formation of hexachloroethane in our experiments, as evidenced by the approximately 20-fold increase in yield of C 2 Cl 6 resulting from electron irradiation.…”

Section: Monolayer Saturation and Multilayer Growth On Mo(110)mentioning

confidence: 99%

Low-Energy Electron-Induced Oligomerization of Condensed Carbon Tetrachloride

et al. 2007

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The low-energy electron-induced chemistry of condensed CCl 4 has been investigated with use of post-irradiation temperature-programmed desorption. These experiments were partly motivated by the growing interest in developing facile and economical methods for decomposing CCl 4 and other halocarbons which through widespread use in industry have become potent environmental pollutants. The experimental procedure involves low-energy (50 eV) electron irradiation (fluence e2 × 10 16 electrons cm -2 ) of nanoscale thin films (5 monolayers) of CCl 4 grown at 100 K on a Mo(110) single crystal under ultrahigh vacuum (UHV) conditions. Results of post-irradiation temperature-programmed desorption experiments were used to identify C 2 Cl 4 , C 2 Cl 6 , C 3 Cl 6 , C 4 Cl 6 , and C 5 Cl x as low-energy electron-induced reaction products of condensed CCl 4 . Two longer chain chlorocarbon oligomers with six or more carbons were also detected but not identified. Although low-energy electron-induced oligomerization reactions have been previously reported for molecules such as thiophene and cyclopropane, the results presented herein represent the first study to specifically identify the products of such reactions, demonstrating the utility of post-irradiation temperature-programmed desorption experiments to study the radiation chemistry of condensed matter.

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The Photo-oxidation of Liquid Carbon Tetrachloride

Cited by 16 publications

References 0 publications

Chloromethanes

Chloromethanes

Photochemical studies of α,β-unsaturated ketones in carbon tetrachloride solution

Low-Energy Electron-Induced Oligomerization of Condensed Carbon Tetrachloride

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