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Article: Comparison of the absorption, emission, and resonance Raman spectra of 7-hydroxyquinoline and 8-bromo-7-hydroxyquinoline caged acetate

TitleComparison of the absorption, emission, and resonance Raman spectra of 7-hydroxyquinoline and 8-bromo-7-hydroxyquinoline caged acetate
Authors
Issue Date2011
PublisherAmerican Chemical Society. The Journal's web site is located at http://pubs.acs.org/jpca
Citation
Journal Of Physical Chemistry A, 2011, v. 115 n. 42, p. 11632-11640 How to Cite?
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.
Persistent Identifierhttp://hdl.handle.net/10722/159297
ISSN
2014 Impact Factor: 2.693
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorMa, Jen_HK
dc.contributor.authorCheng, SCen_HK
dc.contributor.authorAn, Hen_HK
dc.contributor.authorLi, MDen_HK
dc.contributor.authorMa, Cen_HK
dc.contributor.authorRea, ACen_HK
dc.contributor.authorZhu, Yen_HK
dc.contributor.authorNganga, JLen_HK
dc.contributor.authorDore, TMen_HK
dc.contributor.authorPhillips, DLen_HK
dc.date.accessioned2012-08-16T05:48:29Z-
dc.date.available2012-08-16T05:48:29Z-
dc.date.issued2011en_HK
dc.identifier.citationJournal Of Physical Chemistry A, 2011, v. 115 n. 42, p. 11632-11640en_HK
dc.identifier.issn1089-5639en_HK
dc.identifier.urihttp://hdl.handle.net/10722/159297-
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.en_HK
dc.languageengen_US
dc.publisherAmerican Chemical Society. The Journal's web site is located at http://pubs.acs.org/jpcaen_HK
dc.relation.ispartofJournal of Physical Chemistry Aen_HK
dc.subject.meshAcetates - chemistryen_HK
dc.subject.meshBromides - chemistryen_HK
dc.subject.meshChemistry, Physicalen_HK
dc.subject.meshHydrogen-Ion Concentrationen_HK
dc.subject.meshHydroxyquinolines - chemistryen_HK
dc.subject.meshKineticsen_HK
dc.subject.meshMolecular Structureen_HK
dc.subject.meshPhotoelectron Spectroscopyen_HK
dc.subject.meshProtonsen_HK
dc.subject.meshSolutionsen_HK
dc.subject.meshSolvents - chemistryen_HK
dc.subject.meshSpectrometry, Fluorescenceen_HK
dc.subject.meshSpectrum Analysis, Ramanen_HK
dc.subject.meshVibrationen_HK
dc.subject.meshWater - chemistryen_HK
dc.titleComparison of the absorption, emission, and resonance Raman spectra of 7-hydroxyquinoline and 8-bromo-7-hydroxyquinoline caged acetateen_HK
dc.typeArticleen_HK
dc.identifier.emailMa, C:macs@hkucc.hku.hken_HK
dc.identifier.emailPhillips, DL:phillips@hku.hken_HK
dc.identifier.authorityMa, C=rp00758en_HK
dc.identifier.authorityPhillips, DL=rp00770en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1021/jp2063172en_HK
dc.identifier.pmid21905734en_HK
dc.identifier.scopuseid_2-s2.0-80054889304en_HK
dc.identifier.hkuros203405en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-80054889304&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume115en_HK
dc.identifier.issue42en_HK
dc.identifier.spage11632en_HK
dc.identifier.epage11640en_HK
dc.identifier.isiWOS:000296204500019-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridMa, J=39161647600en_HK
dc.identifier.scopusauthoridCheng, SC=54411961700en_HK
dc.identifier.scopusauthoridAn, H=54411879800en_HK
dc.identifier.scopusauthoridLi, MD=35173063700en_HK
dc.identifier.scopusauthoridMa, C=7402924979en_HK
dc.identifier.scopusauthoridRea, AC=37034766600en_HK
dc.identifier.scopusauthoridZhu, Y=36560602200en_HK
dc.identifier.scopusauthoridNganga, JL=26429870200en_HK
dc.identifier.scopusauthoridDore, TM=6603830858en_HK
dc.identifier.scopusauthoridPhillips, DL=7404519365en_HK

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