1039027-73-0Relevant articles and documents
Synthesis and investigation of donor-porphyrin-acceptor triads with long-lived photo-induced charge-separate states
Kelber, Julien B.,Panjwani, Naitik A.,Wu, Di,Gómez-Bombarelli, Rafael,Lovett, Brendon W.,Morton, John J. L.,Anderson, Harry L.
, p. 6468 - 6481 (2015/10/28)
Two donor-porphyrin-acceptor triads have been synthesized using a versatile Suzuki-coupling route. This synthetic strategy allows the powerful donor tetraalkylphenylenediamine (TAPD) to be introduced into tetraarylporphyrin-based triads without protection. The thermodynamics and kinetics of electron transfer in the new triads are compared with a previously reported octaalkyldiphenyl-porphyrin triad exhibiting a long-lived spin-polarized charge separate state (CSS), from theoretical and experimental perspectives, in both fluid solution and in a frozen solvent glass. We show that the less favorable oxidation potential of the tetraaryl-porphyrin core can be offset by using C60, as a better electron-acceptor than triptycenenaphthoquinone (TNQ). The C60-porphyrin-TAPD triad gives a spin-polarized charge-separated state that can be observed by EPR-spectroscopy, with a mean lifetime of 16 ms at 10 K, which is longer than in the previously reported TNQ-porphyrin-TAPD triad, following the predicted trend from calculated charge-recombination rates.
FUSING PORPHYRINS WITH POLYCYCLIC AROMATIC HYDROCARBONS AND HETEROCYCLES FOR OPTOELECTRIC APPLICATIONS
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Page/Page column 35-36, (2012/02/05)
A compound that can be used as a donor material in organic photovoltaic devices comprising a non-activated porphyrin fused with one or more non-activated polycyclic aromatic rings or one or more non-activated heterocyclic rings can be obtained by a thermal fusion process. By heating the reaction mixture of non-activated porphyrins with non-activated polycyclic aromatic rings or heterocyclic rings to a fusion temperature and holding for a predetermined time, fusion of one or more polycyciic rings or heterocyclic rings to the non-activated porphyrin core in meso,β fashion is achieved resulting in hybrid structures containing a distorted porphyrin ring with annulated aromatic rings. The porphyrin core can be olygoporphyrins.
Post-modification of meso-meso-linked porphyrin arrays by iridium and rhodium catalyses for tuning of energy gap
Chen, Jinping,Aratani, Naoki,Shinokubo, Hiroshi,Osuka, Atsuhiro
experimental part, p. 1126 - 1133 (2010/04/23)
meso-meso-Linked diporphyrins fabricated with multiple unsaturated carboxylic acid groups are efficiently synthesized by the use of transition-metal catalysis. Iridium-catalyzed direct borylation of meso-meso-linked diporphyrins furnish multi-borylated di