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Article: Investigation of solvation effects on short-time photodissociation dynamics of alkyl iodides

TitleInvestigation of solvation effects on short-time photodissociation dynamics of alkyl iodides
Authors
Issue Date1992
Citation
Journal Of Physical Chemistry, 1992, v. 96 n. 5, p. 2039-2044 How to Cite?
AbstractResonance and preresonance Raman spectra and A-band absorption spectra of ethyl, isopropyl, and tert-butyl iodides in the gas phase are compared with the corresponding spectra in cyclohexane solution. The C-I stretching Raman bands shift to lower frequencies upon solvation, indicating the dominance of attractive solvent-solute interactions in the ground electronic state. With a few exceptions, the relative intensities of the resonance Raman bands are similar in gas and solution phases, suggesting that solvation has only a minor effect on the early time photodissociation dynamics and excited-state potential energy surfaces in the Franck-Condon region. Solvation does, however, seem to alter the C-I stretching overtone to fundamental intensity ratios, probably as a result of shifts in electronic transition frequencies and/or oscillator strengths upon solvation. The implications for carrying over gas-phase reaction dynamical information into the study of chemical reactions in the solution phase are discussed. © 1992 American Chemical Society.
Persistent Identifierhttp://hdl.handle.net/10722/167272
ISSN
1998 Impact Factor: 4.173
1999 SCImago Journal Rankings: 1.721
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorPhillips, DLen_US
dc.contributor.authorMyers, ABen_US
dc.contributor.authorValentini, JJen_US
dc.date.accessioned2012-10-08T03:05:05Z-
dc.date.available2012-10-08T03:05:05Z-
dc.date.issued1992en_US
dc.identifier.citationJournal Of Physical Chemistry, 1992, v. 96 n. 5, p. 2039-2044en_US
dc.identifier.issn0022-3654en_US
dc.identifier.urihttp://hdl.handle.net/10722/167272-
dc.description.abstractResonance and preresonance Raman spectra and A-band absorption spectra of ethyl, isopropyl, and tert-butyl iodides in the gas phase are compared with the corresponding spectra in cyclohexane solution. The C-I stretching Raman bands shift to lower frequencies upon solvation, indicating the dominance of attractive solvent-solute interactions in the ground electronic state. With a few exceptions, the relative intensities of the resonance Raman bands are similar in gas and solution phases, suggesting that solvation has only a minor effect on the early time photodissociation dynamics and excited-state potential energy surfaces in the Franck-Condon region. Solvation does, however, seem to alter the C-I stretching overtone to fundamental intensity ratios, probably as a result of shifts in electronic transition frequencies and/or oscillator strengths upon solvation. The implications for carrying over gas-phase reaction dynamical information into the study of chemical reactions in the solution phase are discussed. © 1992 American Chemical Society.en_US
dc.languageengen_US
dc.relation.ispartofJournal of Physical Chemistryen_US
dc.titleInvestigation of solvation effects on short-time photodissociation dynamics of alkyl iodidesen_US
dc.typeArticleen_US
dc.identifier.emailPhillips, DL:phillips@hku.hken_US
dc.identifier.authorityPhillips, DL=rp00770en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1021/j100184a006-
dc.identifier.scopuseid_2-s2.0-0000432560en_US
dc.identifier.volume96en_US
dc.identifier.issue5en_US
dc.identifier.spage2039en_US
dc.identifier.epage2044en_US
dc.identifier.isiWOS:A1992HG75300006-
dc.identifier.scopusauthoridPhillips, DL=7404519365en_US
dc.identifier.scopusauthoridMyers, AB=7202743342en_US
dc.identifier.scopusauthoridValentini, JJ=7003875862en_US

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