Photophysical characterization of a bisacridinium-diphenylporphyrin conjugate-Reference-Cited by-同舟云学术

Photophysical characterization of a bisacridinium-diphenylporphyrin conjugate

Published:2023-01 Issue:01n04 Volume:27 Page:569-575
ISSN:1088-4246
Container-title:Journal of Porphyrins and Phthalocyanines
language:en
Short-container-title:J. Porphyrins Phthalocyanines

Author:

Ruani Federica¹,Edo-Osagie Amy²,de Rouville Henri-Pierre Jacquot²,Heitz Valérie²,Ventura Barbara¹,Armaroli Nicola¹

Affiliation:

1. Istituto ISOF-CNR, Via P. Gobetti 101, 40129 Bologna, Italy

2. Laboratoire de Synthèse des Assemblages Moléculaires Multifonctionnels, Institut de Chimie de Strasbourg, CNRS/UMR 7177, 4, rue Blaise Pascal, 67000 Strasbourg, France

Abstract

A molecular conjugate made of a free-base diphenyl porphyrin chromophore (DPP) trans-linked to two N-acridinium units has been synthesized and photophysically characterized in acetonitrile. Interestingly, the emission of both fluorophores is quenched in the array at room temperature. Steady-state and time-resolved optical analysis proved that an ultrafast electron transfer from the porphyrin to the acridinium units occurs upon excitation of either the porphyrin or the acridinium moiety. On the other hand, at low temperature (77 K) the emission of the porphyrin is completely recovered, thanks to the inhibition of the electron transfer, and a photoinduced energy transfer from the acridinium to the porphyrin component is observed.

Funder

NOAH

CONDOR

Publisher

World Scientific Pub Co Pte Ltd

Subject

General Chemistry

Link

https://www.worldscientific.com/doi/pdf/10.1142/S1088424623500396

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