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Electro-activity and magnetic switching in lanthanide-based single-molecule magnets

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Abstract

The control of the single-molecule magnet (SMM) behaviour is highly challenging but crucial to design molecular materials suitable for potential applications in molecular devices. To switch the SMM behaviour, a plethora of external stimuli can be employed such as electro-activity, solvents, protonation, magnetic and electric fields, and light. All these stimuli induce structural modifications and thus, to some degree, changes in the electronic properties. Lanthanide ions are elements extremely sensitive to crystal field effects i.e. they are sensitive to any structural changes making them ideal candidates for the design of molecular switches. This article reviews both the pool of electro-active lanthanide SMMs and the various switching modes such as redox-, solvato-, photo- and proton-switching lanthanide SMM behaviours. These examples highlight the importance of inducing electronic distribution changes close to the lanthanide centre to reach a complete ON–OFF switching but also the preponderance of further structural changes and intermolecular interactions to modulate the magnetic properties. The present review should convince scientific communities that the use of lanthanide ions in the design of molecular switches is a promising strategy.

Graphical abstract: Electro-activity and magnetic switching in lanthanide-based single-molecule magnets

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Publication details

The article was received on 15 Jul 2019, accepted on 26 Aug 2019 and first published on 01 Oct 2019


Article type: Review Article
DOI: 10.1039/C9QI00875F
Inorg. Chem. Front., 2019, Advance Article
  • Open access: Creative Commons BY-NC license
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    Electro-activity and magnetic switching in lanthanide-based single-molecule magnets

    O. Cador, B. Le Guennic and F. Pointillart, Inorg. Chem. Front., 2019, Advance Article , DOI: 10.1039/C9QI00875F

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