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Article Dans Une Revue Chemistry - A European Journal Année : 2020

A Barrel‐Shaped Metal–Organic Blue‐Box Analogue with Photo‐/Redox‐Switchable Behavior

Résumé

Donor acceptor interactions are ubiquitous in the design and understanding of host-guest complexes. Despite their non-covalent nature, they can readily dictate the self-assembly of complex architectures. Here, we present a photo-/redox-switchable metal-organic nanocapsule, assembled using lanthanide ions and viologen building blocks, that relies on such donor-acceptor interactions. We highlight the potential of this unique barrel-shaped structure for the encapsulation of suitable electron donors, akin to the well-investigated "blue-box" macrocycles. The light-triggered reduction of the viologen units has been investigated by single-crystal-to-single-crystal X-ray diffraction experiments, complemented by magnetic, optical and solid-state electrochemical characterizations. Density functional theory (DFT) calculations were employed to suggest the most likely electron donor in the light-triggered reduction of the viologen-based ligand.
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Dates et versions

hal-03033221 , version 1 (04-01-2021)

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Gabriel Brunet, Elizaveta Suturina, Guillaume George, Jeffrey Ovens, Paul Richardson, et al.. A Barrel‐Shaped Metal–Organic Blue‐Box Analogue with Photo‐/Redox‐Switchable Behavior. Chemistry - A European Journal, 2020, ⟨10.1002/chem.202003073⟩. ⟨hal-03033221⟩
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