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Article: Time-resolved spectroscopy study of the triplet state of 4-diethylaminobenzonitrile (DEABN)

TitleTime-resolved spectroscopy study of the triplet state of 4-diethylaminobenzonitrile (DEABN)
Authors
Issue Date2003
PublisherRoyal Society of Chemistry. The Journal's web site is located at http://www.rsc.org/pccp
Citation
Physical Chemistry Chemical Physics, 2003, v. 5 n. 17, p. 3643-3652 How to Cite?
AbstractThe nonradiative deactivation processes of intramolecular charge transfer (ICT) and intersystem crossing (ISC) and their dependence on solvent polarity for DEABN have been studied using transient absorption (TA) spectroscopy. The TA spectra have been taken in non-polar hexane and polar acetonitrile solvents within the 400-630 nm spectral region at time delays of 2 ps to 6 ns. The results are complemented by nanosecond time-resolved resonance Raman (TR 3) spectra of the triplet state of DEABN over the 700 to 2300 cm -1 frequency range. There is no significant difference between the Raman spectra recorded in hexane, acetonitrile and methanol solvents and this implies the triplet state has only one form. Comparison of DEABN triplet Raman spectrum with ab initio DFT geometry and vibrational analysis of DEABN ground state and triplet state TR 3 spectra of the closely related compound dimethylaminobenzonitrile (DMABN) indicates the DEABN triplet state is planar or near planar in structure with noticeable biradical character.
Persistent Identifierhttp://hdl.handle.net/10722/68866
ISSN
2015 Impact Factor: 4.449
2015 SCImago Journal Rankings: 1.836
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorKwok, WMen_HK
dc.contributor.authorMa, Cen_HK
dc.contributor.authorMatousek, Pen_HK
dc.contributor.authorParker, AWen_HK
dc.contributor.authorPhillips, Den_HK
dc.contributor.authorToner, WTen_HK
dc.contributor.authorTowrie, Men_HK
dc.contributor.authorZuo, Pen_HK
dc.contributor.authorPhillips, DLen_HK
dc.date.accessioned2010-09-06T06:08:26Z-
dc.date.available2010-09-06T06:08:26Z-
dc.date.issued2003en_HK
dc.identifier.citationPhysical Chemistry Chemical Physics, 2003, v. 5 n. 17, p. 3643-3652en_HK
dc.identifier.issn1463-9076en_HK
dc.identifier.urihttp://hdl.handle.net/10722/68866-
dc.description.abstractThe nonradiative deactivation processes of intramolecular charge transfer (ICT) and intersystem crossing (ISC) and their dependence on solvent polarity for DEABN have been studied using transient absorption (TA) spectroscopy. The TA spectra have been taken in non-polar hexane and polar acetonitrile solvents within the 400-630 nm spectral region at time delays of 2 ps to 6 ns. The results are complemented by nanosecond time-resolved resonance Raman (TR 3) spectra of the triplet state of DEABN over the 700 to 2300 cm -1 frequency range. There is no significant difference between the Raman spectra recorded in hexane, acetonitrile and methanol solvents and this implies the triplet state has only one form. Comparison of DEABN triplet Raman spectrum with ab initio DFT geometry and vibrational analysis of DEABN ground state and triplet state TR 3 spectra of the closely related compound dimethylaminobenzonitrile (DMABN) indicates the DEABN triplet state is planar or near planar in structure with noticeable biradical character.en_HK
dc.languageengen_HK
dc.publisherRoyal Society of Chemistry. The Journal's web site is located at http://www.rsc.org/pccpen_HK
dc.relation.ispartofPhysical Chemistry Chemical Physicsen_HK
dc.titleTime-resolved spectroscopy study of the triplet state of 4-diethylaminobenzonitrile (DEABN)en_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1463-9076&volume=5&spage=3643&epage=3652&date=2003&atitle=Time-resolved+spectroscopy+study+of+the+triplet+state+of+4-diethylaminobenzonitrile+(DEABN)en_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.doi10.1039/b304896aen_HK
dc.identifier.scopuseid_2-s2.0-0042763038en_HK
dc.identifier.hkuros92421en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0042763038&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume5en_HK
dc.identifier.issue17en_HK
dc.identifier.spage3643en_HK
dc.identifier.epage3652en_HK
dc.identifier.isiWOS:000184814800013-
dc.publisher.placeUnited Kingdomen_HK
dc.identifier.scopusauthoridKwok, WM=7103129332en_HK
dc.identifier.scopusauthoridMa, C=7402924979en_HK
dc.identifier.scopusauthoridMatousek, P=7005659005en_HK
dc.identifier.scopusauthoridParker, AW=7403267977en_HK
dc.identifier.scopusauthoridPhillips, D=22998496000en_HK
dc.identifier.scopusauthoridToner, WT=6701364578en_HK
dc.identifier.scopusauthoridTowrie, M=7004415080en_HK
dc.identifier.scopusauthoridZuo, P=35068878800en_HK
dc.identifier.scopusauthoridPhillips, DL=7404519365en_HK

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