Source:http://linkedlifedata.com/resource/pubmed/id/17165895
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| Predicate | Object |
|---|---|
| rdf:type | |
| lifeskim:mentions | |
| pubmed:issue |
26
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| pubmed:dateCreated |
2006-12-14
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| pubmed:abstractText |
[Structure: see text] Gronert (J. Org. Chem. 2006, 71, 1209) has challenged the importance of hyperconjugation in determining C-H bond dissociation enthalpies (BDEs) in alkanes. Electron paramaganetic resonance spectra of H3CCH2*, (H3C)2CH*, and (H3C)3C* show significant positive spin on their beta-H3C groups' hydrogens. A 55%/45% partitioning of these spins between hyperconjugation and spin polarization mechanisms linearly correlates with the C-H BDEs in methane, ethane, propane, isobutane and propene. Hyperconjugation is an important factor determining alkane C-H BDEs.
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| pubmed:language |
eng
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| pubmed:journal | |
| pubmed:status |
PubMed-not-MEDLINE
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| pubmed:month |
Dec
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| pubmed:issn |
1523-7060
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| pubmed:author | |
| pubmed:issnType |
Print
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| pubmed:day |
21
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| pubmed:volume |
8
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| pubmed:owner |
NLM
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| pubmed:authorsComplete |
Y
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| pubmed:pagination |
5923-5
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| pubmed:year |
2006
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| pubmed:articleTitle |
Bond strengths: the importance of hyperconjugation.
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| pubmed:affiliation |
National Research Council of Canada, 100 Sussex Drive, Ottawa, Ontario, Canada K1A 0R6. keith.ingold@nrc.ca
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| pubmed:publicationType |
Journal Article
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