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hal.structure.identifierInstitute of Applied Radiation Chemistry [Łódź University of Technology]
dc.contributor.authorJAROTA, Arkadiusz
hal.structure.identifierLaboratoire Ondes et Matière d'Aquitaine [LOMA]
dc.contributor.authorTONDUSSON, Marc
hal.structure.identifierLaboratoire Ondes et Matière d'Aquitaine [LOMA]
dc.contributor.authorGALLE, Geoffrey
hal.structure.identifierLaboratoire Ondes et Matière d'Aquitaine [LOMA]
dc.contributor.authorFREYSZ, Eric
hal.structure.identifierInstitute of Applied Radiation Chemistry [Łódź University of Technology]
dc.contributor.authorABRAMCZYK, Halina
dc.date.created2012-02-23
dc.date.issued2012
dc.identifier.issn1089-5639
dc.description.abstractEnA promising material in medicine, electronics, optoelectronics, electrochemistry, catalysis, and photophysics, tetrasulphonated aluminum phthalocyanine (AlPcS4), is investigated by means of steady-state and time-resolved pump?probe spectroscopies. Absorption and steady-state fluorescence spectroscopy indicate that AlPcS4 is essentially monomeric. Spectrally resolved pump-probe data are recorded on time scales ranging from femtoseconds to nanoseconds. The nature of these fast processes and pathways of the competing relaxation processes from the initially excited electronic states in aqueous and organic (dimethyl sulfoxide) solutions are discussed. The decays and bleaching recovery have been fitted in the ultrafast window (0-10 ps) and later time window extending to nanoseconds (0-1 ns). While the excited-state dynamics have been found to be sensitive to the solvent environment, we were able to show that the fast dynamics is described by three time constants in the ranges of 115-500 fs, 2-25 ps, and 150-500 ps. We were able to ascribe these three time constants to different processes. The shortest time constants have been assigned to vibrational wavepacket dynamics. The few picosecond components have been assigned to vibrational relaxation in the excited electronic states. Finally, the 150-500 ps components represent the decay from S1 to the ground state. The experimental and theoretical treatment proposed in this paper provides a basis for a substantial revision of the commonly accepted interpretation of the Soret transition (B transition) that exists in the literature.
dc.language.isoen
dc.publisherAmerican Chemical Society
dc.rights.urihttp://creativecommons.org/licenses/by-nc-sa/
dc.title.enUltrafast Dynamics of Metal Complexes of Tetrasulphonated Phthalocyanines
dc.typeArticle de revue
dc.identifier.doi10.1021/jp3017979
dc.subject.halChimie/Chimie de coordination
dc.subject.halChimie/Chimie théorique et/ou physique
bordeaux.journalJournal of Physical Chemistry A
bordeaux.page4000-4009
bordeaux.volume116
bordeaux.issue16
bordeaux.peerReviewedoui
hal.identifierhal-00701302
hal.version1
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00701302v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Journal%20of%20Physical%20Chemistry%20A&rft.date=2012&rft.volume=116&rft.issue=16&rft.spage=4000-4009&rft.epage=4000-4009&rft.eissn=1089-5639&rft.issn=1089-5639&rft.au=JAROTA,%20Arkadiusz&TONDUSSON,%20Marc&GALLE,%20Geoffrey&FREYSZ,%20Eric&ABRAMCZYK,%20Halina&rft.genre=article


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