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Picosecond observation of cation-stepwise delayed and cation-triggered photoinduced intramolecular charge transfer in fluorescent cation probes

hal.structure.identifierCentre de physique moléculaire optique et hertzienne [CPMOH]
dc.contributor.authorJONUSAUSKAS, Gediminas
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorLAPOUYADE, R.
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorDELMOND, S.
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorLETARD, J. F.
hal.structure.identifierCentre de physique moléculaire optique et hertzienne [CPMOH]
dc.contributor.authorRULLIERE, C.
dc.date.issued1996-10
dc.identifier.issn0021-7689
dc.description.abstractEnTime-resolved transient absorption and gain spectra with subpicosecond laser excitation are reported for donor-donor and acceptor-donor stilbene-crowns (in each compound the electron donor group is the 15-aza-5-crown macrocycle, D<sub>1<sub/>). The effect of the calcium cation on the photoinduced intramolecular charge transfer (ICT) rate constants are measured. When the cation is on the donor side of the molecular system (class 1: D<sub>1<sub/>CS-Crown), the photoinduced ICT process is slowed down and goes through several intermediates characterized by a distancing of the cation, while a solvent molecule enters its coordination sphere. When the cation is on the acceptor side (class 2: D<sub>1<sub/>DS-Crown,D<sub>1<sub/>DB-Crown and D<sub>1<sub/>DCS-Crown), the photoinduced ICT process becomes too fast to be measured, even on the picosecond scale.
dc.language.isoen
dc.publisherEDP Sciences
dc.title.enPicosecond observation of cation-stepwise delayed and cation-triggered photoinduced intramolecular charge transfer in fluorescent cation probes
dc.typeArticle de revue
dc.identifier.doi10.1051/jcp/1996931670
dc.subject.halPhysique [physics]
dc.subject.halPhysique [physics]/Physique [physics]/Optique [physics.optics]
bordeaux.journalJournal de Chimie Physique et de Physico-Chimie Biologique
bordeaux.page1670-1696
bordeaux.volume93
bordeaux.issue10
bordeaux.peerReviewedoui
hal.identifierhal-01550085
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01550085v1
bordeaux.COinSctx_ver=Z39.88-2004&amp;rft_val_fmt=info:ofi/fmt:kev:mtx:journal&amp;rft.jtitle=Journal%20de%20Chimie%20Physique%20et%20de%20Physico-Chimie%20Biologique&amp;rft.date=1996-10&amp;rft.volume=93&amp;rft.issue=10&amp;rft.spage=1670-1696&amp;rft.epage=1670-1696&amp;rft.eissn=0021-7689&amp;rft.issn=0021-7689&amp;rft.au=JONUSAUSKAS,%20Gediminas&amp;LAPOUYADE,%20R.&amp;DELMOND,%20S.&amp;LETARD,%20J.%20F.&amp;RULLIERE,%20C.&amp;rft.genre=article


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