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Article: Direct observation of triplet state mediated decarboxylation of the neutral and anion forms of ketoprofen in water-rich, acidic, and PBS solutions
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TitleDirect observation of triplet state mediated decarboxylation of the neutral and anion forms of ketoprofen in water-rich, acidic, and PBS solutions
 
AuthorsLi, MD1
Ma, J1
Su, T1
Liu, M1
Yu, L1
Phillips, DL1
 
Issue Date2012
 
PublisherAmerican Chemical Society. The Journal's web site is located at http://pubs.acs.org/journal/jpcbfk
 
CitationJournal Of Physical Chemistry B, 2012, v. 116 n. 20, p. 5882-5887 [How to Cite?]
DOI: http://dx.doi.org/10.1021/jp301555e
 
AbstractThe decarboxylation reaction of KP in different acetonitrile-water mixtures producing a carbanion or biradical intermediate is investigated by using femtosecond transient absorption and nanosecond time-resolved resonance Raman spectroscopies to unveil the mechanism of the photochemistry of KP. The irradiation of either the neutral or anion forms of KP leads to the excited singlet state KP species transforming into a corresponding triplet state KP species via a highly efficient intersystem crossing, and then, a triplet state mediated decarboxylation reaction occurs to generate a carbanion intermediate in the phosphate buffer solutions or a biradical species in the water-rich or acidic solutions examined here. © 2012 American Chemical Society.
 
ISSN1520-6106
2012 Impact Factor: 3.607
2012 SCImago Journal Rankings: 1.655
 
DOIhttp://dx.doi.org/10.1021/jp301555e
 
ReferencesReferences in Scopus
 
DC FieldValue
dc.contributor.authorLi, MD
 
dc.contributor.authorMa, J
 
dc.contributor.authorSu, T
 
dc.contributor.authorLiu, M
 
dc.contributor.authorYu, L
 
dc.contributor.authorPhillips, DL
 
dc.date.accessioned2012-08-16T05:48:29Z
 
dc.date.available2012-08-16T05:48:29Z
 
dc.date.issued2012
 
dc.description.abstractThe decarboxylation reaction of KP in different acetonitrile-water mixtures producing a carbanion or biradical intermediate is investigated by using femtosecond transient absorption and nanosecond time-resolved resonance Raman spectroscopies to unveil the mechanism of the photochemistry of KP. The irradiation of either the neutral or anion forms of KP leads to the excited singlet state KP species transforming into a corresponding triplet state KP species via a highly efficient intersystem crossing, and then, a triplet state mediated decarboxylation reaction occurs to generate a carbanion intermediate in the phosphate buffer solutions or a biradical species in the water-rich or acidic solutions examined here. © 2012 American Chemical Society.
 
dc.description.natureLink_to_subscribed_fulltext
 
dc.identifier.citationJournal Of Physical Chemistry B, 2012, v. 116 n. 20, p. 5882-5887 [How to Cite?]
DOI: http://dx.doi.org/10.1021/jp301555e
 
dc.identifier.doihttp://dx.doi.org/10.1021/jp301555e
 
dc.identifier.epage5887
 
dc.identifier.hkuros203416
 
dc.identifier.issn1520-6106
2012 Impact Factor: 3.607
2012 SCImago Journal Rankings: 1.655
 
dc.identifier.issue20
 
dc.identifier.pmid22545726
 
dc.identifier.scopuseid_2-s2.0-84862275338
 
dc.identifier.spage5882
 
dc.identifier.urihttp://hdl.handle.net/10722/159299
 
dc.identifier.volume116
 
dc.languageeng
 
dc.publisherAmerican Chemical Society. The Journal's web site is located at http://pubs.acs.org/journal/jpcbfk
 
dc.publisher.placeUnited States
 
dc.relation.ispartofJournal of Physical Chemistry B
 
dc.relation.referencesReferences in Scopus
 
dc.titleDirect observation of triplet state mediated decarboxylation of the neutral and anion forms of ketoprofen in water-rich, acidic, and PBS solutions
 
dc.typeArticle
 
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Author Affiliations
  1. The University of Hong Kong