Viologen-centered electron transfer is used to trigger a complete dissociation of a porphyrin-based supramolecular architecture. In the oxidized state, self-assembly is induced by iterative association of individual porphyrin-based tectons. Dissociation of the self-assembled species is actuated upon changing the redox state of the bipyridium units involved in the tectons from their dicationic state to their radical cation state, the driving force of the disassembling process being the formation of an intramolecularly locked conformation partly stabilized by π-dimerization of both viologen cation radicals.

Electron-Triggered Metamorphism in Porphyrin-Based Self-Assembled Coordination Polymers

DUMONT, ELISE;GARAVELLI, MARCO;
2016

Abstract

Viologen-centered electron transfer is used to trigger a complete dissociation of a porphyrin-based supramolecular architecture. In the oxidized state, self-assembly is induced by iterative association of individual porphyrin-based tectons. Dissociation of the self-assembled species is actuated upon changing the redox state of the bipyridium units involved in the tectons from their dicationic state to their radical cation state, the driving force of the disassembling process being the formation of an intramolecularly locked conformation partly stabilized by π-dimerization of both viologen cation radicals.
2016
Kahlfuss, Christophe; Denis-Quanquin, Sandrine; Calin, Nathalie; Dumont, Elise; Garavelli, Marco; Royal, Guy; Cobo, Saioa; Saint-Aman, Eric; Bucher, Christophe
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/586232
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