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Evaluated Enthalpies of Formation of the Stable Closed Shell C1 and C2 Chlorinated Hydrocarbons
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| Zeitschriftentitel: | Journal of Physical and Chemical Reference Data |
|---|---|
| Personen und Körperschaften: | |
| In: | Journal of Physical and Chemical Reference Data, 31, 2002, 1, S. 123-172 |
| Format: | E-Article |
| Sprache: | Englisch |
| veröffentlicht: |
AIP Publishing
|
| Schlagwörter: |
| author_facet |
Manion, Jeffrey A. Manion, Jeffrey A. |
|---|---|
| author |
Manion, Jeffrey A. |
| spellingShingle |
Manion, Jeffrey A. Journal of Physical and Chemical Reference Data Evaluated Enthalpies of Formation of the Stable Closed Shell C1 and C2 Chlorinated Hydrocarbons Physical and Theoretical Chemistry General Physics and Astronomy General Chemistry |
| author_sort |
manion, jeffrey a. |
| spelling |
Manion, Jeffrey A. 0047-2689 1529-7845 AIP Publishing Physical and Theoretical Chemistry General Physics and Astronomy General Chemistry http://dx.doi.org/10.1063/1.1420703 <jats:p>Experimental data on the enthalpies of formation of chloromethanes, chloroethynes, chloroethenes, and chloroethanes are critically reviewed. Enthalpy of formation values for the C1 and C2 chlorinated hydrocarbons are highly cross-linked by various measured reaction equilibria and currently available sets of values are not internally self-consistent. It is shown that the early static bomb combustion calorimetry studies on highly chlorinated compounds generally give enthalpies of formation that are systematically more positive than later values derivable from rotating bomb combustion or equilibria studies. Those previously recommended values which were based mainly on the early static bomb work therefore need substantial revision. On the basis of more recent literature data obtained with rotating bomb combustion calorimetry, together with analyses of literature data on other reaction enthalpies and equilibria involving chlorinated hydrocarbons, an updated self-consistent set of ΔfHo[298.15 K] values for closed shell chlorinated C1 and C2 hydrocarbons (25 compounds) is recommended. Data on the enthalpies of vaporization are also reviewed and values of ΔvapH[298.15 K] and ΔvapHo[298.15 K] are recommended. The presently suggested enthalpies of formation for highly chlorinated alkenes and alkanes (particularly C2Cl4, C2HCl3, C2HCl5, and C2Cl6) are significantly (8–15 kJ mol−1) more negative than given by most previous evaluators. Values for the chloroethynes are 10–25 kJ mol−1 more positive than given in previous reviews and more limited changes are suggested for other compounds in the series.</jats:p> Evaluated Enthalpies of Formation of the Stable Closed Shell C1 and C2 Chlorinated Hydrocarbons Journal of Physical and Chemical Reference Data |
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Journal of Physical and Chemical Reference Data |
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| title |
Evaluated Enthalpies of Formation of the Stable Closed Shell C1 and C2 Chlorinated Hydrocarbons |
| title_unstemmed |
Evaluated Enthalpies of Formation of the Stable Closed Shell C1 and C2 Chlorinated Hydrocarbons |
| title_full |
Evaluated Enthalpies of Formation of the Stable Closed Shell C1 and C2 Chlorinated Hydrocarbons |
| title_fullStr |
Evaluated Enthalpies of Formation of the Stable Closed Shell C1 and C2 Chlorinated Hydrocarbons |
| title_full_unstemmed |
Evaluated Enthalpies of Formation of the Stable Closed Shell C1 and C2 Chlorinated Hydrocarbons |
| title_short |
Evaluated Enthalpies of Formation of the Stable Closed Shell C1 and C2 Chlorinated Hydrocarbons |
| title_sort |
evaluated enthalpies of formation of the stable closed shell c1 and c2 chlorinated hydrocarbons |
| topic |
Physical and Theoretical Chemistry General Physics and Astronomy General Chemistry |
| url |
http://dx.doi.org/10.1063/1.1420703 |
| publishDate |
2002 |
| physical |
123-172 |
| description |
<jats:p>Experimental data on the enthalpies of formation of chloromethanes, chloroethynes, chloroethenes, and chloroethanes are critically reviewed. Enthalpy of formation values for the C1 and C2 chlorinated hydrocarbons are highly cross-linked by various measured reaction equilibria and currently available sets of values are not internally self-consistent. It is shown that the early static bomb combustion calorimetry studies on highly chlorinated compounds generally give enthalpies of formation that are systematically more positive than later values derivable from rotating bomb combustion or equilibria studies. Those previously recommended values which were based mainly on the early static bomb work therefore need substantial revision. On the basis of more recent literature data obtained with rotating bomb combustion calorimetry, together with analyses of literature data on other reaction enthalpies and equilibria involving chlorinated hydrocarbons, an updated self-consistent set of ΔfHo[298.15 K] values for closed shell chlorinated C1 and C2 hydrocarbons (25 compounds) is recommended. Data on the enthalpies of vaporization are also reviewed and values of ΔvapH[298.15 K] and ΔvapHo[298.15 K] are recommended. The presently suggested enthalpies of formation for highly chlorinated alkenes and alkanes (particularly C2Cl4, C2HCl3, C2HCl5, and C2Cl6) are significantly (8–15 kJ mol−1) more negative than given by most previous evaluators. Values for the chloroethynes are 10–25 kJ mol−1 more positive than given in previous reviews and more limited changes are suggested for other compounds in the series.</jats:p> |
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| description | <jats:p>Experimental data on the enthalpies of formation of chloromethanes, chloroethynes, chloroethenes, and chloroethanes are critically reviewed. Enthalpy of formation values for the C1 and C2 chlorinated hydrocarbons are highly cross-linked by various measured reaction equilibria and currently available sets of values are not internally self-consistent. It is shown that the early static bomb combustion calorimetry studies on highly chlorinated compounds generally give enthalpies of formation that are systematically more positive than later values derivable from rotating bomb combustion or equilibria studies. Those previously recommended values which were based mainly on the early static bomb work therefore need substantial revision. On the basis of more recent literature data obtained with rotating bomb combustion calorimetry, together with analyses of literature data on other reaction enthalpies and equilibria involving chlorinated hydrocarbons, an updated self-consistent set of ΔfHo[298.15 K] values for closed shell chlorinated C1 and C2 hydrocarbons (25 compounds) is recommended. Data on the enthalpies of vaporization are also reviewed and values of ΔvapH[298.15 K] and ΔvapHo[298.15 K] are recommended. The presently suggested enthalpies of formation for highly chlorinated alkenes and alkanes (particularly C2Cl4, C2HCl3, C2HCl5, and C2Cl6) are significantly (8–15 kJ mol−1) more negative than given by most previous evaluators. Values for the chloroethynes are 10–25 kJ mol−1 more positive than given in previous reviews and more limited changes are suggested for other compounds in the series.</jats:p> |
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| spelling | Manion, Jeffrey A. 0047-2689 1529-7845 AIP Publishing Physical and Theoretical Chemistry General Physics and Astronomy General Chemistry http://dx.doi.org/10.1063/1.1420703 <jats:p>Experimental data on the enthalpies of formation of chloromethanes, chloroethynes, chloroethenes, and chloroethanes are critically reviewed. Enthalpy of formation values for the C1 and C2 chlorinated hydrocarbons are highly cross-linked by various measured reaction equilibria and currently available sets of values are not internally self-consistent. It is shown that the early static bomb combustion calorimetry studies on highly chlorinated compounds generally give enthalpies of formation that are systematically more positive than later values derivable from rotating bomb combustion or equilibria studies. Those previously recommended values which were based mainly on the early static bomb work therefore need substantial revision. On the basis of more recent literature data obtained with rotating bomb combustion calorimetry, together with analyses of literature data on other reaction enthalpies and equilibria involving chlorinated hydrocarbons, an updated self-consistent set of ΔfHo[298.15 K] values for closed shell chlorinated C1 and C2 hydrocarbons (25 compounds) is recommended. Data on the enthalpies of vaporization are also reviewed and values of ΔvapH[298.15 K] and ΔvapHo[298.15 K] are recommended. The presently suggested enthalpies of formation for highly chlorinated alkenes and alkanes (particularly C2Cl4, C2HCl3, C2HCl5, and C2Cl6) are significantly (8–15 kJ mol−1) more negative than given by most previous evaluators. Values for the chloroethynes are 10–25 kJ mol−1 more positive than given in previous reviews and more limited changes are suggested for other compounds in the series.</jats:p> Evaluated Enthalpies of Formation of the Stable Closed Shell C1 and C2 Chlorinated Hydrocarbons Journal of Physical and Chemical Reference Data |
| spellingShingle | Manion, Jeffrey A., Journal of Physical and Chemical Reference Data, Evaluated Enthalpies of Formation of the Stable Closed Shell C1 and C2 Chlorinated Hydrocarbons, Physical and Theoretical Chemistry, General Physics and Astronomy, General Chemistry |
| title | Evaluated Enthalpies of Formation of the Stable Closed Shell C1 and C2 Chlorinated Hydrocarbons |
| title_full | Evaluated Enthalpies of Formation of the Stable Closed Shell C1 and C2 Chlorinated Hydrocarbons |
| title_fullStr | Evaluated Enthalpies of Formation of the Stable Closed Shell C1 and C2 Chlorinated Hydrocarbons |
| title_full_unstemmed | Evaluated Enthalpies of Formation of the Stable Closed Shell C1 and C2 Chlorinated Hydrocarbons |
| title_short | Evaluated Enthalpies of Formation of the Stable Closed Shell C1 and C2 Chlorinated Hydrocarbons |
| title_sort | evaluated enthalpies of formation of the stable closed shell c1 and c2 chlorinated hydrocarbons |
| title_unstemmed | Evaluated Enthalpies of Formation of the Stable Closed Shell C1 and C2 Chlorinated Hydrocarbons |
| topic | Physical and Theoretical Chemistry, General Physics and Astronomy, General Chemistry |
| url | http://dx.doi.org/10.1063/1.1420703 |