Exclusive triplet electron transfer leading to long-lived radical ion-pair formation in an electron rich platinum porphyrin covalently linked to fullerene dyad

Dili R. Subedi, Habtom B. Gobeze, Yuri E. Kandrashkin, Prashanth K. Poddutoori, Art van der Est, Francis D'Souza

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Abstract

The formation of a high-energy, long-lived radical ion-pair by electron transfer exclusively from the triplet excited state, is demonstrated in a newly synthesized platinum porphyrin-fullerene dyad, in which the porphyrin ring is modified with three electron rich triphenylamine entities. The spin selectivity of the electron transfer leading to the formation of the radical ion-pair is demonstrated using time-resolved optical and EPR spectroscopic techniques.

Original languageEnglish (US)
Pages (from-to)6058-6061
Number of pages4
JournalChemical Communications
Volume56
Issue number45
DOIs
StatePublished - Jun 7 2020

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