Controlling the Host-Guest Interaction Mode through a Redox Stimulus - Archive ouverte HAL
Article Dans Une Revue Angewandte Chemie International Edition Année : 2017

Controlling the Host-Guest Interaction Mode through a Redox Stimulus

György Szalóki
Vincent Croué
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Olivier Alévêque
Eric Levillain
Magali Allain
Sébastien Goeb
Marc Sallé

Résumé

A proof-of-concept related to the redox-control of the binding/releasing process in a host-guest system is achieved by designing a neutral and robust Pt-based redox-active metallacage involving two extended-tetrathiafulvalene (exTTF) ligands. When neutral, the cage is able to bind a planar polyaromatic guest (coronene). Remarkably, the chemical or electrochemical oxidation of the host-guest complex leads to the reversible expulsion of the guest outside the cavity, which is assigned to a drastic change of the host-guest interaction mode, illustrating the key role of counteranions along the exchange process. The reversible process is supported by various experimental data (1 H NMR spectroscopy, ESI-FTICR, and spectroelectrochemistry) as well as by in-depth theoretical calculations performed at the density functional theory (DFT) level.
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Dates et versions

hal-01683189 , version 1 (12-01-2018)

Identifiants

Citer

György Szalóki, Vincent Croué, Vincent Carré, Frédéric Aubriet, Olivier Alévêque, et al.. Controlling the Host-Guest Interaction Mode through a Redox Stimulus. Angewandte Chemie International Edition, 2017, 56 (51), pp.16272-16276. ⟨10.1002/anie.201709483⟩. ⟨hal-01683189⟩
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