Shock wave study and theoretical modeling of the thermal decomposition of c-C4F8
The thermal dissociation of octafluorocyclobutane, c-C4F8, was studied in shock waves over the range 1150-2300 K by recording UV absorption signals of CF2. It was found that the primary reaction nearly exclusively produces 2 C2F4 which afterwards decomposes to 4 CF2. A primary reaction leading to CF...
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| Autores principales: | , , , , , |
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| Formato: | Articulo Preprint |
| Lenguaje: | Inglés |
| Publicado: |
2015
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| Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/96448 https://ri.conicet.gov.ar/11336/81022 https://pubs.rsc.org/en/content/articlelanding/2015/CP/C5CP05366H#!divAbstract |
| Aporte de: |
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I19-R120-10915-96448 |
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| record_format |
dspace |
| institution |
Universidad Nacional de La Plata |
| institution_str |
I-19 |
| repository_str |
R-120 |
| collection |
SEDICI (UNLP) |
| language |
Inglés |
| topic |
Química Octafluorocyclobutane Kinetics |
| spellingShingle |
Química Octafluorocyclobutane Kinetics Cobos, Carlos Jorge Hintzer, K. Sölter, L. Tellbach, E. Thaler, A. Troe, J. Shock wave study and theoretical modeling of the thermal decomposition of c-C4F8 |
| topic_facet |
Química Octafluorocyclobutane Kinetics |
| description |
The thermal dissociation of octafluorocyclobutane, c-C4F8, was studied in shock waves over the range 1150-2300 K by recording UV absorption signals of CF2. It was found that the primary reaction nearly exclusively produces 2 C2F4 which afterwards decomposes to 4 CF2. A primary reaction leading to CF2 + C3F6 is not detected (an upper limit to the yield of the latter channel was found to be about 10 percent). The temperature range of earlier single pulse shock wave experiments was extended. The reaction was shown to be close to its high pressure limit. Combining high and low temperature results leads to a rate constant for the primary dissociation of k1 = 1015.97 exp(-310.5 kJ mol-1/RT) s-1 in the range 630-1330 K, over which k1 varies over nearly 14 orders of magnitude. Calculations of the energetics of the reaction pathway and the rate constants support the conclusions from the experiments. Also they shed light on the role of the 1,4-biradical CF2CF2CF2CF2 as an intermediate of the reaction. |
| format |
Articulo Preprint |
| author |
Cobos, Carlos Jorge Hintzer, K. Sölter, L. Tellbach, E. Thaler, A. Troe, J. |
| author_facet |
Cobos, Carlos Jorge Hintzer, K. Sölter, L. Tellbach, E. Thaler, A. Troe, J. |
| author_sort |
Cobos, Carlos Jorge |
| title |
Shock wave study and theoretical modeling of the thermal decomposition of c-C4F8 |
| title_short |
Shock wave study and theoretical modeling of the thermal decomposition of c-C4F8 |
| title_full |
Shock wave study and theoretical modeling of the thermal decomposition of c-C4F8 |
| title_fullStr |
Shock wave study and theoretical modeling of the thermal decomposition of c-C4F8 |
| title_full_unstemmed |
Shock wave study and theoretical modeling of the thermal decomposition of c-C4F8 |
| title_sort |
shock wave study and theoretical modeling of the thermal decomposition of c-c4f8 |
| publishDate |
2015 |
| url |
http://sedici.unlp.edu.ar/handle/10915/96448 https://ri.conicet.gov.ar/11336/81022 https://pubs.rsc.org/en/content/articlelanding/2015/CP/C5CP05366H#!divAbstract |
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AT coboscarlosjorge shockwavestudyandtheoreticalmodelingofthethermaldecompositionofcc4f8 AT hintzerk shockwavestudyandtheoreticalmodelingofthethermaldecompositionofcc4f8 AT solterl shockwavestudyandtheoreticalmodelingofthethermaldecompositionofcc4f8 AT tellbache shockwavestudyandtheoreticalmodelingofthethermaldecompositionofcc4f8 AT thalera shockwavestudyandtheoreticalmodelingofthethermaldecompositionofcc4f8 AT troej shockwavestudyandtheoreticalmodelingofthethermaldecompositionofcc4f8 |
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Repositorios |
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1764820492134383620 |