1993
DOI: 10.1021/j100111a032
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Thermal decomposition of carbon tetrachloride

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Cited by 87 publications
(101 citation statements)
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“…However, the absolute magnitudes of the rate constants are largely dependent on the collisional deactivation efficiency, pc, and this quantity is a function of &>down. We have noted that the implied values for &>down in halogen containing molecules are quite large I in comparison to hydrocarbon dissociations [31] and have suggested that this increased collision efficiency may be due to "mass matching" effects between the peripheral large halogen molecules and the relatively large bath gas molecules, Ar and/or Kr [15]. It is important to note that there is still no a priori theoretical chemical physics theory for PC determination, and, until it can theoretically characterized, unimolecular rate theory will continue to be incomplete.…”
Section: Resultsmentioning
confidence: 94%
“…However, the absolute magnitudes of the rate constants are largely dependent on the collisional deactivation efficiency, pc, and this quantity is a function of &>down. We have noted that the implied values for &>down in halogen containing molecules are quite large I in comparison to hydrocarbon dissociations [31] and have suggested that this increased collision efficiency may be due to "mass matching" effects between the peripheral large halogen molecules and the relatively large bath gas molecules, Ar and/or Kr [15]. It is important to note that there is still no a priori theoretical chemical physics theory for PC determination, and, until it can theoretically characterized, unimolecular rate theory will continue to be incomplete.…”
Section: Resultsmentioning
confidence: 94%
“…These arguments supported the final products obtained by the authors: CO 2 , and allowed a description of the rate of production and subsequent degradation of the intermediates for the sonolysis of CCl 4 . The thermal dissociation of CCl 4 in an Ar gas phase is known to produce two chlorine atoms for every molecule of CCl 4 ; fission of the second chlorine is thought to occur at 10% of the rate of the primary fission [124]. Since the degradation of CCl 4 was observed to be a pseudo-first-order reaction, the reverse reaction CCl 3 · and Cl · radicals can be ignored.…”
Section: Specific Mechanismsmentioning
confidence: 99%
“…Este comportamento pode ser explicado através do equilíbrio termodinâmico das espécies estáveis versus temperatura, pois diminuindo-se a potência aplicada (e consequentemente o gradiente de temperatura dentro do reator) há um aumento na recombinação de espécies radicalares para formar o CCl 4 , enquanto que a quantidade de cloro produzida permanece aproximadamente constante no intervalo de temperatura entre 830 a 1590 K. 14 Michael et al 20 , o que confirma a hipótese de uma concentração de espécie radicalares maior do que a concentração de espécies iônicas no meio.…”
Section: Eficiência De Decomposição Do CCLunclassified