Interplay between singlet and triplet excited states in a conformationally locked donor–acceptor dyad

Handle URI:
http://hdl.handle.net/10754/583549
Title:
Interplay between singlet and triplet excited states in a conformationally locked donor–acceptor dyad
Authors:
Filatov, Mikhail A.; Etzold, Fabian; Gehrig, Dominik; Laquai, Frederic ( 0000-0002-5887-6158 ) ; Busko, Dmitri; Landfester, Katharina; Baluschev, Stanislav
Abstract:
The synthesis and photophysical characterization of a palladium(II) porphyrin – anthracene dyad bridged via short and conformationally rigid bicyclo[2.2.2]octadiene spacer were achieved. A spectroscopic investigation of the prepared molecule in solution has been undertaken to study electronic energy transfer in excited singlet and triplet states between the anthracene and porphyrin units. By using steady-state and time-resolved photoluminescence spectroscopy it was shown that excitation of the singlet excited state of the anthracene leads to energy transfer to the lower-lying singlet state of porphyrin. Alternatively, excitation of the porphyrin followed by intersystem crossing to the triplet state leads to very fast energy transfer to the triplet state of anthracene. The rate of this energy transfer has been determined by transient absorption spectroscopy. Comparative studies of the dynamics of triplet excited states of the dyad and reference palladium octaethylporphyrin (PdOEP) have been performed.
KAUST Department:
Physical Sciences and Engineering (PSE) Division; Materials Science and Engineering Program; Solar and Photovoltaic Engineering Research Center (SPERC)
Citation:
Interplay between singlet and triplet excited states in a conformationally locked donor–acceptor dyad 2015, 44 (44):19207 Dalton Trans.
Publisher:
Royal Society of Chemistry (RSC)
Journal:
Dalton Trans.
Issue Date:
13-Oct-2015
DOI:
10.1039/C5DT03784K
Type:
Article
ISSN:
1477-9226; 1477-9234
Additional Links:
http://xlink.rsc.org/?DOI=C5DT03784K
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division; Materials Science and Engineering Program; Solar and Photovoltaic Engineering Research Center (SPERC)

Full metadata record

DC FieldValue Language
dc.contributor.authorFilatov, Mikhail A.en
dc.contributor.authorEtzold, Fabianen
dc.contributor.authorGehrig, Dominiken
dc.contributor.authorLaquai, Fredericen
dc.contributor.authorBusko, Dmitrien
dc.contributor.authorLandfester, Katharinaen
dc.contributor.authorBaluschev, Stanislaven
dc.date.accessioned2015-12-10T09:45:48Zen
dc.date.available2015-12-10T09:45:48Zen
dc.date.issued2015-10-13en
dc.identifier.citationInterplay between singlet and triplet excited states in a conformationally locked donor–acceptor dyad 2015, 44 (44):19207 Dalton Trans.en
dc.identifier.issn1477-9226en
dc.identifier.issn1477-9234en
dc.identifier.doi10.1039/C5DT03784Ken
dc.identifier.urihttp://hdl.handle.net/10754/583549en
dc.description.abstractThe synthesis and photophysical characterization of a palladium(II) porphyrin – anthracene dyad bridged via short and conformationally rigid bicyclo[2.2.2]octadiene spacer were achieved. A spectroscopic investigation of the prepared molecule in solution has been undertaken to study electronic energy transfer in excited singlet and triplet states between the anthracene and porphyrin units. By using steady-state and time-resolved photoluminescence spectroscopy it was shown that excitation of the singlet excited state of the anthracene leads to energy transfer to the lower-lying singlet state of porphyrin. Alternatively, excitation of the porphyrin followed by intersystem crossing to the triplet state leads to very fast energy transfer to the triplet state of anthracene. The rate of this energy transfer has been determined by transient absorption spectroscopy. Comparative studies of the dynamics of triplet excited states of the dyad and reference palladium octaethylporphyrin (PdOEP) have been performed.en
dc.language.isoenen
dc.publisherRoyal Society of Chemistry (RSC)en
dc.relation.urlhttp://xlink.rsc.org/?DOI=C5DT03784Ken
dc.rightsArchived with thanks to Dalton Trans.en
dc.titleInterplay between singlet and triplet excited states in a conformationally locked donor–acceptor dyaden
dc.typeArticleen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.contributor.departmentMaterials Science and Engineering Programen
dc.contributor.departmentSolar and Photovoltaic Engineering Research Center (SPERC)en
dc.identifier.journalDalton Trans.en
dc.eprint.versionPost-printen
dc.contributor.institutionMax Planck Institute for Polymer Research, Ackermannweg 10, D-55128 Mainz, Germanyen
dc.contributor.institutionInstitute of Polymers, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., block 103-A, BG – 1113 Sofia, Bulgariaen
dc.contributor.institutionOptics and Spectroscopy Department, Faculty of Physics, Sofia University “St. Kliment Ochridski”, 5 James Bourchier, 1164 Sofia, Bulgariaen
dc.contributor.institutionFreiburg Institute for Advanced Studies (FRIAS), Albert-Ludwigs-Universität Freiburg, Albertstraße 19, D-79104 Freiburg, Germanyen
dc.contributor.affiliationKing Abdullah University of Science and Technology (KAUST)en
kaust.authorLaquai, Fredericen
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