Porphyrin-Ryleneimide Hybrids: Low-Bandgap Acceptors in Energy-Transfer Cassettes

Ewelina Janiga; Gakhyun Kim; Piotr J. Chmielewski; Tadeusz Lis; Dongho Kim; Marcin Stępień

doi:10.1002/asia.202000762

Porphyrin-Ryleneimide Hybrids: Low-Bandgap Acceptors in Energy-Transfer Cassettes

Ewelina Janiga, Gakhyun Kim, Piotr J. Chmielewski, Tadeusz Lis, Dongho Kim, Marcin Stępień

Department of Chemistry

Research output: Contribution to journal › Article

Abstract

Energy-transfer cassettes consisting of naphthaleneimide-fused metalloporphyrin acceptors (M=Zn and Pd) and BODIPY donors have been designed and synthesized. These systems have rigid pseudo-tetrahedral structures with a donor-acceptor separation of ca. 17.5 Å. Spectroscopic investigations, including femtosecond transient absorption measurements, showed efficient excitation energy transfer (EET) occurring according to the Förster mechanism. Strong fluorescence of the donor units and significant spectral overlap of the donor and acceptor subunits are prerequisites for the efficient EET in these systems.

Original language	English
Journal	Chemistry - An Asian Journal
DOIs	https://doi.org/10.1002/asia.202000762
Publication status	Accepted/In press - 2020

All Science Journal Classification (ASJC) codes

Biochemistry
Organic Chemistry

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10.1002/asia.202000762

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Janiga, E., Kim, G., Chmielewski, P. J., Lis, T., Kim, D., & Stępień, M. (Accepted/In press). Porphyrin-Ryleneimide Hybrids: Low-Bandgap Acceptors in Energy-Transfer Cassettes. Chemistry - An Asian Journal. https://doi.org/10.1002/asia.202000762

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T2 - Low-Bandgap Acceptors in Energy-Transfer Cassettes

AU - Janiga, Ewelina

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AU - Lis, Tadeusz

AU - Kim, Dongho

AU - Stępień, Marcin

PY - 2020

Y1 - 2020

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AB - Energy-transfer cassettes consisting of naphthaleneimide-fused metalloporphyrin acceptors (M=Zn and Pd) and BODIPY donors have been designed and synthesized. These systems have rigid pseudo-tetrahedral structures with a donor-acceptor separation of ca. 17.5 Å. Spectroscopic investigations, including femtosecond transient absorption measurements, showed efficient excitation energy transfer (EET) occurring according to the Förster mechanism. Strong fluorescence of the donor units and significant spectral overlap of the donor and acceptor subunits are prerequisites for the efficient EET in these systems.

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