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BODIPY‐Pyrene and Perylene Dyads as Heavy‐Atom‐Free Singlet Oxygen Sensitizers
Author(s) -
Filatov Mikhail A.,
Karuthedath Safakath,
Polestshuk Pavel M.,
Callaghan Susan,
Flanagan Keith J.,
Wiesner Thomas,
Laquai Frédéric,
Senge Mathias O.
Publication year - 2018
Publication title -
chemphotochem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.13
H-Index - 18
ISSN - 2367-0932
DOI - 10.1002/cptc.201800020
Subject(s) - perylene , bodipy , photochemistry , pyrene , singlet oxygen , chemistry , quantum yield , electron acceptor , excited state , photoinduced electron transfer , oxygen , acceptor , fluorescence , electron transfer , triplet state , singlet state , ultrafast laser spectroscopy , spectroscopy , molecule , atomic physics , organic chemistry , physics , quantum mechanics , condensed matter physics
Dyads combining BODIPY as an electron acceptor and pyrene or perylene as electron donor subunits were prepared and their photophysical properties were studied by steady‐state and transient spectroscopy. Depending on the structure of the subunits and the polarity of the media, the dyads show either bright fluorescence or photo‐induced electron transfer (PeT) in solution. Charge‐transfer (CT) states formed as a result of PeT and were found to yield triplet excited states of the BODIPY. In the presence of molecular oxygen, the dyads sensitize singlet oxygen ( 1 O 2 ) with quantum yields of up to 0.75.