File Download

There are no files associated with this item.

  Links for fulltext
     (May Require Subscription)
Supplementary

Article: B-band resonance Raman study of nitromethane in ethanol/water solvent

TitleB-band resonance Raman study of nitromethane in ethanol/water solvent
Authors
KeywordsTime Photodissociation Dynamics
Intensity Analysis
Electronic States
Solution Phases
193 Nm
Issue Date1999
PublisherSpectral-Force Publications.
Citation
Asian Journal of Spectroscopy, 1999, v. 3 n. 2, p. 69-77 How to Cite?
AbstractWe have obtained B-band resonance Raman spectra of nitromethane in an ethanol water mixed solvent. The spectra have been recorded at 298 K were the solvent is a liquid and at 77 K were the solvent forms a glass. The absorption spectra and resonance Raman intensities were simulated using wavepacket calculations and a simple model. The absorption and resonance Raman spectra as well as the simulation parameters were very similar for the liquid and glass spectra. This suggests that the ground and excited states in the first part of the Franck-Condon region are very similar for the liquid and glass solvent environments. However, there were some noticeable differences in the liquid and glass resonance Raman spectra. The glass Raman bands shift toward lower vibrational frequencies at higher vibrational quanta compared to the liquid Raman bands which indicates that attractive forces are larger for the glass compared to the liquid for the ground electronic state. The Raman bandwidths are smaller in the glass than the liquid which implies that ground state vibrational dephasing is smaller for the glass than the liquid.
Persistent Identifierhttp://hdl.handle.net/10722/68946
ISSN
2005 Impact Factor: 0.083
2015 SCImago Journal Rankings: 0.104
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorLee, CWen_HK
dc.contributor.authorZhang, XMen_HK
dc.contributor.authorPhillips, DLen_HK
dc.date.accessioned2010-09-06T06:09:09Z-
dc.date.available2010-09-06T06:09:09Z-
dc.date.issued1999en_HK
dc.identifier.citationAsian Journal of Spectroscopy, 1999, v. 3 n. 2, p. 69-77en_HK
dc.identifier.issn0971-9237en_HK
dc.identifier.urihttp://hdl.handle.net/10722/68946-
dc.description.abstractWe have obtained B-band resonance Raman spectra of nitromethane in an ethanol water mixed solvent. The spectra have been recorded at 298 K were the solvent is a liquid and at 77 K were the solvent forms a glass. The absorption spectra and resonance Raman intensities were simulated using wavepacket calculations and a simple model. The absorption and resonance Raman spectra as well as the simulation parameters were very similar for the liquid and glass spectra. This suggests that the ground and excited states in the first part of the Franck-Condon region are very similar for the liquid and glass solvent environments. However, there were some noticeable differences in the liquid and glass resonance Raman spectra. The glass Raman bands shift toward lower vibrational frequencies at higher vibrational quanta compared to the liquid Raman bands which indicates that attractive forces are larger for the glass compared to the liquid for the ground electronic state. The Raman bandwidths are smaller in the glass than the liquid which implies that ground state vibrational dephasing is smaller for the glass than the liquid.-
dc.languageengen_HK
dc.publisherSpectral-Force Publications.en_HK
dc.relation.ispartofAsian Journal of Spectroscopyen_HK
dc.subjectTime Photodissociation Dynamics-
dc.subjectIntensity Analysis-
dc.subjectElectronic States-
dc.subjectSolution Phases-
dc.subject193 Nm-
dc.titleB-band resonance Raman study of nitromethane in ethanol/water solventen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0971-9237&volume=3&spage=69&epage=77&date=1999&atitle=B-band+resonance+Raman+study+of+nitromethane+in+ethanol/water+solventen_HK
dc.identifier.emailPhillips, DL: phillips@hku.hken_HK
dc.identifier.authorityPhillips, DL=rp00770en_HK
dc.identifier.hkuros50393en_HK
dc.identifier.volume3-
dc.identifier.issue2-
dc.identifier.spage69-
dc.identifier.epage77-
dc.identifier.isiWOS:000082293600002-
dc.publisher.placeIndia-

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats