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Article: Resonance Raman intensity analysis of directly photodissociating haloalkane and dihaloalkane molecules

TitleResonance Raman intensity analysis of directly photodissociating haloalkane and dihaloalkane molecules
Authors
KeywordsBond selective excitation
Photodissociation dynamics
Resonance Raman intensity analysis
Resonance raman spectroscopy
Issue Date1999
PublisherScience Reviews Ltd. The Journal's web site is located at http://www.scilet.com/Chemistry/Kinetics/progress.htm
Citation
Progress In Reaction Kinetics And Mechanism, 1999, v. 24 n. 3, p. 223-286 How to Cite?
AbstractWe show some applications of resonance Raman intensity analysis to examine direct photodissociation reactions in polyatomic haloalkane molecules. These investigations indicate that direct C-I bond cleavage in iodoalkane and haloalkane molecules have distinctly multidimensional reaction coordinates that depend on the structure of the parent molecule. The Franck-Condon region photodissociation dynamics of the molecules studied seem to be qualitatively consistent with an impulsive 'semi-rigid' radical description of the photodissociation dynamics. The initial photodissociation dynamics also show intriguing correlation with the energy partitioning of the photoproducts as measured by time-of-flight transitional spectroscopy experiments. Gas and solution phase resonance Raman spectra and associated short-time photodissociation dynamics are usually very similar to one another except in cases where significant solvent symmetry breaking takes place (as in diiodomethane). Bond selective electronic excitation was investigated in several different dihaloalkane molecules and their short-time photodissociation dynamics exhibit some correlation with the amount of interaction between the two carbon-halogen chromophores. We discuss the ramifications of the initial photodissociation dynamics for energy partitioning and bond selective photochemistry.
Persistent Identifierhttp://hdl.handle.net/10722/70023
ISSN
2015 Impact Factor: 0.279
2015 SCImago Journal Rankings: 0.175
References

 

DC FieldValueLanguage
dc.contributor.authorPhillips, DLen_HK
dc.date.accessioned2010-09-06T06:18:59Z-
dc.date.available2010-09-06T06:18:59Z-
dc.date.issued1999en_HK
dc.identifier.citationProgress In Reaction Kinetics And Mechanism, 1999, v. 24 n. 3, p. 223-286en_HK
dc.identifier.issn1468-6783en_HK
dc.identifier.urihttp://hdl.handle.net/10722/70023-
dc.description.abstractWe show some applications of resonance Raman intensity analysis to examine direct photodissociation reactions in polyatomic haloalkane molecules. These investigations indicate that direct C-I bond cleavage in iodoalkane and haloalkane molecules have distinctly multidimensional reaction coordinates that depend on the structure of the parent molecule. The Franck-Condon region photodissociation dynamics of the molecules studied seem to be qualitatively consistent with an impulsive 'semi-rigid' radical description of the photodissociation dynamics. The initial photodissociation dynamics also show intriguing correlation with the energy partitioning of the photoproducts as measured by time-of-flight transitional spectroscopy experiments. Gas and solution phase resonance Raman spectra and associated short-time photodissociation dynamics are usually very similar to one another except in cases where significant solvent symmetry breaking takes place (as in diiodomethane). Bond selective electronic excitation was investigated in several different dihaloalkane molecules and their short-time photodissociation dynamics exhibit some correlation with the amount of interaction between the two carbon-halogen chromophores. We discuss the ramifications of the initial photodissociation dynamics for energy partitioning and bond selective photochemistry.en_HK
dc.languageengen_HK
dc.publisherScience Reviews Ltd. The Journal's web site is located at http://www.scilet.com/Chemistry/Kinetics/progress.htmen_HK
dc.relation.ispartofProgress in Reaction Kinetics and Mechanismen_HK
dc.subjectBond selective excitationen_HK
dc.subjectPhotodissociation dynamicsen_HK
dc.subjectResonance Raman intensity analysisen_HK
dc.subjectResonance raman spectroscopyen_HK
dc.titleResonance Raman intensity analysis of directly photodissociating haloalkane and dihaloalkane moleculesen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1468-6783&volume=24&spage=pp223&epage=286&date=1999&atitle=Resonance+Raman+intensity+analysis+of+directly+photodissociating+haloalkane+and+dihaloalkane+moleculesen_HK
dc.identifier.emailPhillips, DL:phillips@hku.hken_HK
dc.identifier.authorityPhillips, DL=rp00770en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.3184/007967499103165094-
dc.identifier.scopuseid_2-s2.0-0001424750en_HK
dc.identifier.hkuros50405en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0001424750&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume24en_HK
dc.identifier.issue3en_HK
dc.identifier.spage223en_HK
dc.identifier.epage286en_HK
dc.publisher.placeUnited Kingdomen_HK
dc.identifier.scopusauthoridPhillips, DL=7404519365en_HK

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