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231223s2011 xx |||||o 00| ||eng c |
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|a 10.1002/jcc.21756
|2 doi
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|a pubmed24n0688.xml
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|a eng
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|a Altarawneh, Mohammednoor
|e verfasserin
|4 aut
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|a Rate constants for hydrogen abstraction reactions by the hydroperoxyl radical from methanol, ethenol, acetaldehyde, toluene, and phenol
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|c 2011
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|a Text
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Completed 21.07.2011
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|a Date Revised 07.04.2011
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a Copyright © 2011 Wiley Periodicals, Inc.
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|a An important step in the initial oxidation of hydrocarbons at low to intermediate temperatures is the abstraction of H by hydroperoxyl radical (HO(2)). In this study, we calculate energy profiles for the sequence: reactant + HO(2) → [complex of reactants] → transition state → [complex of products] → product + H(2)O(2) for methanol, ethenol (i.e., C(2)H(3)OH), acetaldehyde, toluene, and phenol. Rate constants are provided in the simple Arrhenius form. Reasonable agreement was obtained with the limited literature data available for acetaldehyde and toluene. Addition of HO(2) to the various distinct sites in phenol is investigated. Direct abstraction of the hydroxyl H was found to dominate over HO(2) addition to the ring. The results presented herein should be useful in modeling the lower temperature oxidation of the five compounds considered, especially at low temperature where the HO(2) is expected to exist at reactive levels
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|a Journal Article
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|a Al-Muhtaseb, Ala'A H
|e verfasserin
|4 aut
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|a Dlugogorski, Bogdan Z
|e verfasserin
|4 aut
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|a Kennedy, Eric M
|e verfasserin
|4 aut
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|a Mackie, John C
|e verfasserin
|4 aut
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|i Enthalten in
|t Journal of computational chemistry
|d 1984
|g 32(2011), 8 vom: 01. Juni, Seite 1725-33
|w (DE-627)NLM098138448
|x 1096-987X
|7 nnns
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|g volume:32
|g year:2011
|g number:8
|g day:01
|g month:06
|g pages:1725-33
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|u http://dx.doi.org/10.1002/jcc.21756
|3 Volltext
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