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Article: Comparison of the absorption, emission, and resonance Raman spectra of 7-hydroxyquinoline and 8-bromo-7-hydroxyquinoline caged acetate
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TitleComparison of the absorption, emission, and resonance Raman spectra of 7-hydroxyquinoline and 8-bromo-7-hydroxyquinoline caged acetate
 
AuthorsMa, J2
Cheng, SC2
An, H2
Li, MD2
Ma, C2
Rea, AC1
Zhu, Y1
Nganga, JL1
Dore, TM1
Phillips, DL2
 
Issue Date2011
 
PublisherAmerican Chemical Society. The Journal's web site is located at http://pubs.acs.org/jpca
 
CitationJournal Of Physical Chemistry A, 2011, v. 115 n. 42, p. 11632-11640 [How to Cite?]
DOI: http://dx.doi.org/10.1021/jp2063172
 
AbstractTo better understand the deprotection reaction of the new promising phototrigger compound BHQ-OAc (8-bromo-7-hydroxyquinoline acetate), we present a detailed comparison of the UV-vis absorption, resonance Raman, and fluorescence spectra of BHQ-OAc with its parent compound 7-hydroxyquinoline in different solvents. The steady-state absorption and resonance Raman spectra provide fundamental information about the structure, properties, and population distribution of the different prototropic forms present under the different solvent conditions examined. The species present in the excited states that emit strongly were detected by fluorescence spectra. It is shown that the ground-state tautomerization process of BHQ-OAc is disfavored compared with that of 7-HQ in aqueous solutions. The observation of the tautomeric form of BHQ-OAc in neutral aqueous solutions demonstrates the occurrence of the excited-state proton-transfer process, which would be a competing process for the deprotection reaction of BHQ-OAc in aqueous solutions. © 2011 American Chemical Society.
 
ISSN1089-5639
2012 Impact Factor: 2.771
2012 SCImago Journal Rankings: 1.296
 
DOIhttp://dx.doi.org/10.1021/jp2063172
 
ISI Accession Number IDWOS:000296204500019
 
ReferencesReferences in Scopus
 
DC FieldValue
dc.contributor.authorMa, J
 
dc.contributor.authorCheng, SC
 
dc.contributor.authorAn, H
 
dc.contributor.authorLi, MD
 
dc.contributor.authorMa, C
 
dc.contributor.authorRea, AC
 
dc.contributor.authorZhu, Y
 
dc.contributor.authorNganga, JL
 
dc.contributor.authorDore, TM
 
dc.contributor.authorPhillips, DL
 
dc.date.accessioned2012-08-16T05:48:29Z
 
dc.date.available2012-08-16T05:48:29Z
 
dc.date.issued2011
 
dc.description.abstractTo better understand the deprotection reaction of the new promising phototrigger compound BHQ-OAc (8-bromo-7-hydroxyquinoline acetate), we present a detailed comparison of the UV-vis absorption, resonance Raman, and fluorescence spectra of BHQ-OAc with its parent compound 7-hydroxyquinoline in different solvents. The steady-state absorption and resonance Raman spectra provide fundamental information about the structure, properties, and population distribution of the different prototropic forms present under the different solvent conditions examined. The species present in the excited states that emit strongly were detected by fluorescence spectra. It is shown that the ground-state tautomerization process of BHQ-OAc is disfavored compared with that of 7-HQ in aqueous solutions. The observation of the tautomeric form of BHQ-OAc in neutral aqueous solutions demonstrates the occurrence of the excited-state proton-transfer process, which would be a competing process for the deprotection reaction of BHQ-OAc in aqueous solutions. © 2011 American Chemical Society.
 
dc.description.natureLink_to_subscribed_fulltext
 
dc.identifier.citationJournal Of Physical Chemistry A, 2011, v. 115 n. 42, p. 11632-11640 [How to Cite?]
DOI: http://dx.doi.org/10.1021/jp2063172
 
dc.identifier.doihttp://dx.doi.org/10.1021/jp2063172
 
dc.identifier.epage11640
 
dc.identifier.hkuros203405
 
dc.identifier.isiWOS:000296204500019
 
dc.identifier.issn1089-5639
2012 Impact Factor: 2.771
2012 SCImago Journal Rankings: 1.296
 
dc.identifier.issue42
 
dc.identifier.pmid21905734
 
dc.identifier.scopuseid_2-s2.0-80054889304
 
dc.identifier.spage11632
 
dc.identifier.urihttp://hdl.handle.net/10722/159297
 
dc.identifier.volume115
 
dc.languageeng
 
dc.publisherAmerican Chemical Society. The Journal's web site is located at http://pubs.acs.org/jpca
 
dc.publisher.placeUnited States
 
dc.relation.ispartofJournal of Physical Chemistry A
 
dc.relation.referencesReferences in Scopus
 
dc.subject.meshAcetates - chemistry
 
dc.subject.meshBromides - chemistry
 
dc.subject.meshChemistry, Physical
 
dc.subject.meshHydrogen-Ion Concentration
 
dc.subject.meshHydroxyquinolines - chemistry
 
dc.subject.meshKinetics
 
dc.subject.meshMolecular Structure
 
dc.subject.meshPhotoelectron Spectroscopy
 
dc.subject.meshProtons
 
dc.subject.meshSolutions
 
dc.subject.meshSolvents - chemistry
 
dc.subject.meshSpectrometry, Fluorescence
 
dc.subject.meshSpectrum Analysis, Raman
 
dc.subject.meshVibration
 
dc.subject.meshWater - chemistry
 
dc.titleComparison of the absorption, emission, and resonance Raman spectra of 7-hydroxyquinoline and 8-bromo-7-hydroxyquinoline caged acetate
 
dc.typeArticle
 
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<description.abstract>To better understand the deprotection reaction of the new promising phototrigger compound BHQ-OAc (8-bromo-7-hydroxyquinoline acetate), we present a detailed comparison of the UV-vis absorption, resonance Raman, and fluorescence spectra of BHQ-OAc with its parent compound 7-hydroxyquinoline in different solvents. The steady-state absorption and resonance Raman spectra provide fundamental information about the structure, properties, and population distribution of the different prototropic forms present under the different solvent conditions examined. The species present in the excited states that emit strongly were detected by fluorescence spectra. It is shown that the ground-state tautomerization process of BHQ-OAc is disfavored compared with that of 7-HQ in aqueous solutions. The observation of the tautomeric form of BHQ-OAc in neutral aqueous solutions demonstrates the occurrence of the excited-state proton-transfer process, which would be a competing process for the deprotection reaction of BHQ-OAc in aqueous solutions. &#169; 2011 American Chemical Society.</description.abstract>
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Author Affiliations
  1. The University of Georgia
  2. The University of Hong Kong