The unimolecular dissociation of 3,4-dihydro-2H-pyran over a wide temperature range
Besseris, G. J. ; Kiefer, J. H. ; Zhang, Q. ; Walker, J. A. ; Tsang, W.
New York, NY : Wiley-Blackwell
Published 1995
New York, NY : Wiley-Blackwell
Published 1995
| ISSN: |
0538-8066
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|---|---|
| Keywords: |
Chemistry ; Physical Chemistry
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| Source: |
Wiley InterScience Backfile Collection 1832-2000
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| Topics: |
Chemistry and Pharmacology
|
| Notes: |
The thermal decomposition of 3,4-dihydro-2H-pyran (DHP, C5H8O) has been investigated by two methods: in shock waves with the laser-schlieren technique using mixtures of 5 and 10% DHP in krypton over 900-1500 K, 110-560 torr; in a flow tube having a reaction pressure 0.5 torr above atmospheric using the decomposition of allylethyl ether as an internal standard, and covering 663-773 K. The retro-Diels-Alder dissociation to the stable acrolein and ethylene is the dominant channel for all conditions. Precise rate constants (rms deviation of 10%) were obtained for this process over the indicated temperature ranges. Unimolecular falloff is evident in the shock-tube results, and RRKM calculations also predict a slight falloff at the lower temperatures. These RRKM calculations use a routine vibration model transition state and agree closely with the high-temperature data when 〈ΔE〉down is a fixed 400 cm-1. Arrhenius expressions for k∞ derived from the two measurements are in close accord and also consistent with most previous studies of this reaction. © 1995 John Wiley & Sons, Inc.
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| Additional Material: |
5 Ill.
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| Type of Medium: |
Electronic Resource
|
| URL: |
| _version_ | 1798298198700195840 |
|---|---|
| addmaterial | 5 Ill. |
| autor | Besseris, G. J. Kiefer, J. H. Zhang, Q. Walker, J. A. Tsang, W. |
| autorsonst | Besseris, G. J. Kiefer, J. H. Zhang, Q. Walker, J. A. Tsang, W. |
| book_url | http://dx.doi.org/10.1002/kin.550270708 |
| datenlieferant | nat_lic_papers |
| hauptsatz | hsatz_simple |
| identnr | NLM162469187 |
| issn | 0538-8066 |
| journal_name | International Journal of Chemical Kinetics |
| materialart | 1 |
| notes | The thermal decomposition of 3,4-dihydro-2H-pyran (DHP, C5H8O) has been investigated by two methods: in shock waves with the laser-schlieren technique using mixtures of 5 and 10% DHP in krypton over 900-1500 K, 110-560 torr; in a flow tube having a reaction pressure 0.5 torr above atmospheric using the decomposition of allylethyl ether as an internal standard, and covering 663-773 K. The retro-Diels-Alder dissociation to the stable acrolein and ethylene is the dominant channel for all conditions. Precise rate constants (rms deviation of 10%) were obtained for this process over the indicated temperature ranges. Unimolecular falloff is evident in the shock-tube results, and RRKM calculations also predict a slight falloff at the lower temperatures. These RRKM calculations use a routine vibration model transition state and agree closely with the high-temperature data when 〈ΔE〉down is a fixed 400 cm-1. Arrhenius expressions for k∞ derived from the two measurements are in close accord and also consistent with most previous studies of this reaction. © 1995 John Wiley & Sons, Inc. |
| package_name | Wiley-Blackwell |
| publikationsjahr_anzeige | 1995 |
| publikationsjahr_facette | 1995 |
| publikationsjahr_intervall | 8004:1995-1999 |
| publikationsjahr_sort | 1995 |
| publikationsort | New York, NY |
| publisher | Wiley-Blackwell |
| reference | 27 (1995), S. 691-701 |
| schlagwort | Chemistry Physical Chemistry |
| search_space | articles |
| shingle_author_1 | Besseris, G. J. Kiefer, J. H. Zhang, Q. Walker, J. A. Tsang, W. |
| shingle_author_2 | Besseris, G. J. Kiefer, J. H. Zhang, Q. Walker, J. A. Tsang, W. |
| shingle_author_3 | Besseris, G. J. Kiefer, J. H. Zhang, Q. Walker, J. A. Tsang, W. |
| shingle_author_4 | Besseris, G. J. Kiefer, J. H. Zhang, Q. Walker, J. A. Tsang, W. |
| shingle_catch_all_1 | Besseris, G. J. Kiefer, J. H. Zhang, Q. Walker, J. A. Tsang, W. The unimolecular dissociation of 3,4-dihydro-2H-pyran over a wide temperature range Chemistry Physical Chemistry Chemistry Physical Chemistry The thermal decomposition of 3,4-dihydro-2H-pyran (DHP, C5H8O) has been investigated by two methods: in shock waves with the laser-schlieren technique using mixtures of 5 and 10% DHP in krypton over 900-1500 K, 110-560 torr; in a flow tube having a reaction pressure 0.5 torr above atmospheric using the decomposition of allylethyl ether as an internal standard, and covering 663-773 K. The retro-Diels-Alder dissociation to the stable acrolein and ethylene is the dominant channel for all conditions. Precise rate constants (rms deviation of 10%) were obtained for this process over the indicated temperature ranges. Unimolecular falloff is evident in the shock-tube results, and RRKM calculations also predict a slight falloff at the lower temperatures. These RRKM calculations use a routine vibration model transition state and agree closely with the high-temperature data when 〈ΔE〉down is a fixed 400 cm-1. Arrhenius expressions for k∞ derived from the two measurements are in close accord and also consistent with most previous studies of this reaction. © 1995 John Wiley & Sons, Inc. 0538-8066 05388066 Wiley-Blackwell |
| shingle_catch_all_2 | Besseris, G. J. Kiefer, J. H. Zhang, Q. Walker, J. A. Tsang, W. The unimolecular dissociation of 3,4-dihydro-2H-pyran over a wide temperature range Chemistry Physical Chemistry Chemistry Physical Chemistry The thermal decomposition of 3,4-dihydro-2H-pyran (DHP, C5H8O) has been investigated by two methods: in shock waves with the laser-schlieren technique using mixtures of 5 and 10% DHP in krypton over 900-1500 K, 110-560 torr; in a flow tube having a reaction pressure 0.5 torr above atmospheric using the decomposition of allylethyl ether as an internal standard, and covering 663-773 K. The retro-Diels-Alder dissociation to the stable acrolein and ethylene is the dominant channel for all conditions. Precise rate constants (rms deviation of 10%) were obtained for this process over the indicated temperature ranges. Unimolecular falloff is evident in the shock-tube results, and RRKM calculations also predict a slight falloff at the lower temperatures. These RRKM calculations use a routine vibration model transition state and agree closely with the high-temperature data when 〈ΔE〉down is a fixed 400 cm-1. Arrhenius expressions for k∞ derived from the two measurements are in close accord and also consistent with most previous studies of this reaction. © 1995 John Wiley & Sons, Inc. 0538-8066 05388066 Wiley-Blackwell |
| shingle_catch_all_3 | Besseris, G. J. Kiefer, J. H. Zhang, Q. Walker, J. A. Tsang, W. The unimolecular dissociation of 3,4-dihydro-2H-pyran over a wide temperature range Chemistry Physical Chemistry Chemistry Physical Chemistry The thermal decomposition of 3,4-dihydro-2H-pyran (DHP, C5H8O) has been investigated by two methods: in shock waves with the laser-schlieren technique using mixtures of 5 and 10% DHP in krypton over 900-1500 K, 110-560 torr; in a flow tube having a reaction pressure 0.5 torr above atmospheric using the decomposition of allylethyl ether as an internal standard, and covering 663-773 K. The retro-Diels-Alder dissociation to the stable acrolein and ethylene is the dominant channel for all conditions. Precise rate constants (rms deviation of 10%) were obtained for this process over the indicated temperature ranges. Unimolecular falloff is evident in the shock-tube results, and RRKM calculations also predict a slight falloff at the lower temperatures. These RRKM calculations use a routine vibration model transition state and agree closely with the high-temperature data when 〈ΔE〉down is a fixed 400 cm-1. Arrhenius expressions for k∞ derived from the two measurements are in close accord and also consistent with most previous studies of this reaction. © 1995 John Wiley & Sons, Inc. 0538-8066 05388066 Wiley-Blackwell |
| shingle_catch_all_4 | Besseris, G. J. Kiefer, J. H. Zhang, Q. Walker, J. A. Tsang, W. The unimolecular dissociation of 3,4-dihydro-2H-pyran over a wide temperature range Chemistry Physical Chemistry Chemistry Physical Chemistry The thermal decomposition of 3,4-dihydro-2H-pyran (DHP, C5H8O) has been investigated by two methods: in shock waves with the laser-schlieren technique using mixtures of 5 and 10% DHP in krypton over 900-1500 K, 110-560 torr; in a flow tube having a reaction pressure 0.5 torr above atmospheric using the decomposition of allylethyl ether as an internal standard, and covering 663-773 K. The retro-Diels-Alder dissociation to the stable acrolein and ethylene is the dominant channel for all conditions. Precise rate constants (rms deviation of 10%) were obtained for this process over the indicated temperature ranges. Unimolecular falloff is evident in the shock-tube results, and RRKM calculations also predict a slight falloff at the lower temperatures. These RRKM calculations use a routine vibration model transition state and agree closely with the high-temperature data when 〈ΔE〉down is a fixed 400 cm-1. Arrhenius expressions for k∞ derived from the two measurements are in close accord and also consistent with most previous studies of this reaction. © 1995 John Wiley & Sons, Inc. 0538-8066 05388066 Wiley-Blackwell |
| shingle_title_1 | The unimolecular dissociation of 3,4-dihydro-2H-pyran over a wide temperature range |
| shingle_title_2 | The unimolecular dissociation of 3,4-dihydro-2H-pyran over a wide temperature range |
| shingle_title_3 | The unimolecular dissociation of 3,4-dihydro-2H-pyran over a wide temperature range |
| shingle_title_4 | The unimolecular dissociation of 3,4-dihydro-2H-pyran over a wide temperature range |
| sigel_instance_filter | dkfz geomar wilbert ipn albert |
| source_archive | Wiley InterScience Backfile Collection 1832-2000 |
| timestamp | 2024-05-06T10:20:05.230Z |
| titel | The unimolecular dissociation of 3,4-dihydro-2H-pyran over a wide temperature range |
| titel_suche | The unimolecular dissociation of 3,4-dihydro-2H-pyran over a wide temperature range |
| topic | V |
| uid | nat_lic_papers_NLM162469187 |