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Article: Effect of laser intensity on the determination of intermolecular electron transfer rate constants - Observation of Marcus inverted region in photoinduced back electron transfer reactions

TitleEffect of laser intensity on the determination of intermolecular electron transfer rate constants - Observation of Marcus inverted region in photoinduced back electron transfer reactions
Authors
KeywordsPhysics chemistry
Issue Date1998
PublisherAmerican Institute of Physics. The Journal's web site is located at http://jcp.aip.org/jcp/staff.jsp
Citation
Journal of Chemical Physics, 1998, v. 109 n. 14, p. 5948-5956 How to Cite?
AbstractThe light intensity and concentration dependence of the photoproduct yield are investigated in a monophotonic process. The relationship of the photoproduct yield with the laser intensity and the complex concentration for a monophotonic process is derived under laser flash photolysis. The relationship is confirmed experimentally in a monophotonic process, i.e., triplet-triplet transition for a Cu(I) complex Cu6(DMNSN′)6 (DMNSN′=4,6-dimethylpyrimidine-2-thiolate). At low light intensity, the relationship can be approximated by a linear inverse square root dependence on the light intensity. Based on this equation, a method is proposed to determine the intrinsic back electron transfer rate constant kET b in photoinduced intermolecular electron transfer reactions, precluding the effect from the diffusional encounter pairs. The Marcus "inverted region" is observed by using the method in photoinduced back electron transfer reactions of [Au2(dppm)2](ClO4)2 (dppm=bis(diphenylphosphino)methane) with a series of substituted pyridinium acceptors. © 1998 American Institute of Physics.
Persistent Identifierhttp://hdl.handle.net/10722/42627
ISSN
2017 Impact Factor: 2.843
2015 SCImago Journal Rankings: 0.959
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorWeng, YXen_HK
dc.contributor.authorChan, KCen_HK
dc.contributor.authorTzeng, BCen_HK
dc.contributor.authorChe, CMen_HK
dc.date.accessioned2007-03-23T04:28:17Z-
dc.date.available2007-03-23T04:28:17Z-
dc.date.issued1998en_HK
dc.identifier.citationJournal of Chemical Physics, 1998, v. 109 n. 14, p. 5948-5956-
dc.identifier.issn0021-9606en_HK
dc.identifier.urihttp://hdl.handle.net/10722/42627-
dc.description.abstractThe light intensity and concentration dependence of the photoproduct yield are investigated in a monophotonic process. The relationship of the photoproduct yield with the laser intensity and the complex concentration for a monophotonic process is derived under laser flash photolysis. The relationship is confirmed experimentally in a monophotonic process, i.e., triplet-triplet transition for a Cu(I) complex Cu6(DMNSN′)6 (DMNSN′=4,6-dimethylpyrimidine-2-thiolate). At low light intensity, the relationship can be approximated by a linear inverse square root dependence on the light intensity. Based on this equation, a method is proposed to determine the intrinsic back electron transfer rate constant kET b in photoinduced intermolecular electron transfer reactions, precluding the effect from the diffusional encounter pairs. The Marcus "inverted region" is observed by using the method in photoinduced back electron transfer reactions of [Au2(dppm)2](ClO4)2 (dppm=bis(diphenylphosphino)methane) with a series of substituted pyridinium acceptors. © 1998 American Institute of Physics.en_HK
dc.format.extent226239 bytes-
dc.format.extent25600 bytes-
dc.format.mimetypeapplication/pdf-
dc.format.mimetypeapplication/msword-
dc.languageengen_HK
dc.publisherAmerican Institute of Physics. The Journal's web site is located at http://jcp.aip.org/jcp/staff.jspen_HK
dc.relation.ispartofJournal of Chemical Physicsen_HK
dc.rightsCopyright 1998 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Journal of Chemical Physics, 1998, v. 109 n. 14, p. 5948-5956 and may be found at https://doi.org/10.1063/1.477219-
dc.subjectPhysics chemistryen_HK
dc.titleEffect of laser intensity on the determination of intermolecular electron transfer rate constants - Observation of Marcus inverted region in photoinduced back electron transfer reactionsen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0021-9606&volume=109&issue=14&spage=5948&epage=5956&date=1998&atitle=Effect+of+laser+intensity+on+the+determination+of+intermolecular+electron+transfer+rate+constants+-+observation+of+marcus+inverted+region+in+photoinduced+back+electron+transfer+reactionsen_HK
dc.identifier.emailChe, CM:cmche@hku.hken_HK
dc.identifier.authorityChe, CM=rp00670en_HK
dc.description.naturepublished_or_final_versionen_HK
dc.identifier.doi10.1063/1.477219en_HK
dc.identifier.scopuseid_2-s2.0-0032497468en_HK
dc.identifier.hkuros40272-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0032497468&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume109en_HK
dc.identifier.issue14en_HK
dc.identifier.spage5948en_HK
dc.identifier.epage5956en_HK
dc.identifier.isiWOS:000076216900030-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridWeng, YX=7103321459en_HK
dc.identifier.scopusauthoridChan, KC=13609968400en_HK
dc.identifier.scopusauthoridTzeng, BC=7003648630en_HK
dc.identifier.scopusauthoridChe, CM=7102442791en_HK

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