MA, Xiaozhou; SUTURINA, Elizaveta; DE, Siddhartha; NÉGRIER, Philippe; ROUZIÈRES, Mathieu; CLÉRAC, Rodolphe; DECHAMBENOIT, Pierre

doi:10.1002/anie.201803842

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MA, Xiaozhou
Centre de Recherche Paul Pascal [CRPP]

SUTURINA, Elizaveta
University of Southampton

DE, Siddhartha
Centre de Recherche Paul Pascal [CRPP]

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Article de revue

Ce document a été publié dans

Angewandte Chemie International Edition. 2018-06-25, vol. 57, n° 26, p. 7841 - 7845

Wiley-VCH Verlag

Résumé en anglais

A dinuclear CoII complex, [Co2(tphz)(tpy)2]n+ (n=4, 3 or 2; tphz: tetrapyridophenazine; tpy: terpyridine), has been assembled using the redox-active and strongly complexing tphz bridging ligand. The magnetic properties of this complex can be tuned from spin-crossover with T1/2&470 K for the pristine compound (n=4) to single-molecule magnet with an ST=5/2 spin ground state when once reduced (n=3) to finally a diamagnetic species when twice reduced (n=2). The two successive and reversible reductions are concomitant with an increase of the spin delocalization within the complex, promoting remarkably large magnetic exchange couplings and high-spin species even at room temperature.< Réduire

Mots clés en anglais

molecular magnetism

multiswitchability

non-innocent ligands

radicals

spin delocalization

DOI

http://dx.doi.org/10.1002/anie.201803842

Project ANR

Synthèse, étude et fonctionnalisation de nanoaimants moléculaires redox-actifs - ANR-16-CE29-0001

Origine

Importé de hal

Unités de recherche

Laboratoire Ondes et Matière d'Aquitaine (LOMA) - UMR 5798