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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
4
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pubmed:dateCreated |
1991-5-28
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pubmed:abstractText |
The triplet energy of alpha-terthienyl has been determined by heavy atom-induced optical absorption: the value of 39.7 +/- 1.5 kcal/mol is consistent with earlier energy transfer work. Combining this result with calorimetric data from optoacoustic calorimetry indicates that intersystem crossing occurs with at least 90% efficiency in polar and non-polar solvents. The quantum yields for singlet oxygen formation via energy transfer from triplet alpha-terthienyl have been obtained from time-resolved measurements of its IR phosphorescence: these yields are in the 0.6-0.8 range in non-polar and polar (hydroxylic and non-hydroxylic) solvents.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/Indicators and Reagents,
http://linkedlifedata.com/resource/pubmed/chemical/Oxygen,
http://linkedlifedata.com/resource/pubmed/chemical/Singlet Oxygen,
http://linkedlifedata.com/resource/pubmed/chemical/Thiophenes,
http://linkedlifedata.com/resource/pubmed/chemical/terthienyl
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pubmed:status |
MEDLINE
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pubmed:month |
Oct
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pubmed:issn |
0031-8655
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
52
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
655-9
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:2089414-Calorimetry,
pubmed-meshheading:2089414-Indicators and Reagents,
pubmed-meshheading:2089414-Luminescence,
pubmed-meshheading:2089414-Oxygen,
pubmed-meshheading:2089414-Photochemistry,
pubmed-meshheading:2089414-Singlet Oxygen,
pubmed-meshheading:2089414-Spectrophotometry, Infrared,
pubmed-meshheading:2089414-Thiophenes
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pubmed:year |
1990
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pubmed:articleTitle |
Efficiency of the photoprocesses leading to singlet oxygen (1 delta g) generation by alpha-terthienyl: optical absorption, optoacoustic calorimetry and infrared luminescence studies.
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pubmed:affiliation |
Division of Chemistry, National Research Council of Canada, Ottawa.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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