Shock Wave Study of the Thermal Dissociations of C_3F_6 and c-C_3F_6. II. Dissociation of Hexafluorocyclopropane and Dimerization of CF_2

C. J. Cobos; L. So?lter; E. Tellbach; J. Troe

首页> 外文期刊>The journal of physical chemistry, A. Molecules, spectroscopy, kinetics, environment, & general theory >Shock Wave Study of the Thermal Dissociations of C_3F_6 and c-C_3F_6. II. Dissociation of Hexafluorocyclopropane and Dimerization of CF_2

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Shock Wave Study of the Thermal Dissociations of C_3F_6 and c-C_3F_6. II. Dissociation of Hexafluorocyclopropane and Dimerization of CF_2

机译：C_3F_6和c-C_3F_6热解离的冲击波研究。二。六氟环丙烷的离解和CF_2的二聚

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The thermal dissociation of c-C_3F_6 has been studied in shock waves over the range 620-1030 K monitoring the UV absorption of CF_2. The reaction was studied close to its high-pressure limit, but some high-temperature falloff was accounted for. Quantum-chemical and kinetic modeling rationalized the experimental data. The reaction is suggested to involve the 1,3 biradical CF_2CF_2CF_2 intermediate. CF_2 formed by the dissociation of c-C_3F_6 dimerizes to C_2F_4. The measured rate of this reaction is also found to correspond to the falloff range. Rate constants for 2CF_2 → C_2F_4 as a function of temperature and bath gas concentration [Ar] are given and shown to be consistent with literature values for the high-pressure rate constants from experiments at lower temperatures and dissociation rate constants obtained in the falloff range at higher temperatures. The onset of falloff at intermediate temperatures is analyzed.

机译：已经在监测CF_2的紫外线吸收的620-1030 K范围内的冲击波中研究了c-C_3F_6的热解离。研究了该反应接近其高压极限，但是考虑到一些高温下降。量子化学和动力学建模使实验数据合理化。建议该反应涉及1,3双自由基CF_2CF_2CF_2中间体。由c-C_3F_6解离形成的CF_2二聚为C_2F_4。还发现测得的该反应速率对应于衰减范围。给出了2CF_2→C_2F_4的速率常数作为温度和熔池气体浓度[Ar]的函数，并显示出与文献中低温实验中的高压速率常数和在衰减范围内的解离速率常数的文献值一致。更高的温度。分析了中间温度下的脱落现象。

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《The journal of physical chemistry, A. Molecules, spectroscopy, kinetics, environment, & general theory》 |2014年第27期|共7页
作者
C. J. Cobos; L. So?lter; E. Tellbach; J. Troe;
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正文语种 eng
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dissociation; temperatures; literature;

机译：离解;温度;文学;

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1. Shock Wave Study of the Thermal Dissociations of C_3F_6 and c-C_3F_6. II. Dissociation of Hexafluorocyclopropane and Dimerization of CF_2 [J] . C. J. Cobos, L. So?lter, E. Tellbach, The journal of physical chemistry, A. Molecules, spectroscopy, kinetics, environment, & general theory . 2014,第27期

机译：C_3F_6和c-C_3F_6热解离的冲击波研究。二。六氟环丙烷的离解和CF_2的二聚
2. Shock Wave Study of the Thermal Dissociations of C_3F_6 and c-C_3F_6. I. Dissociation of Hexafluoropropene [J] . C. J. Cobos, L. So?lter, E. Tellbach, The journal of physical chemistry, A. Molecules, spectroscopy, kinetics, environment, & general theory . 2014,第27期

机译：C_3F_6和c-C_3F_6热解离的冲击波研究。 I.六氟丙烯的离解
3. Shock Wave Study of the Thermal Dissociations of C_3F_6 and c-C_3F_6. I. Dissociation of Hexafluoropropene [J] . C. J. Cobos, L. So?lter, E. Tellbach, The journal of physical chemistry, A. Molecules, spectroscopy, kinetics, environment, & general theory . 2014,第27期

机译：C_3F_6和c-C_3F_6热解离的冲击波研究。 I.六氟丙烯的离解
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Shock Wave Study of the Thermal Dissociations of C_3F_6 and c-C_3F_6. II. Dissociation of Hexafluorocyclopropane and Dimerization of CF_2

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