A heteroleptic diradical Cr(III) complex with extended spin delocalization and large intramolecular magnetic exchange - Archive ouverte HAL
Article Dans Une Revue Chemical Communications Année : 2020

A heteroleptic diradical Cr(III) complex with extended spin delocalization and large intramolecular magnetic exchange

Résumé

Successive chemical reductions of the heteroleptic complex [(tpy)-Cr III (tphz)] 3+ (tpy = terpyridine; tphz = tetrapyridophenazine) give rise to the mono-and di-radical redox isomers, [(tpy)Cr III (tphz À)] 2+ and [(tpy À)Cr III (tphz À)] + , respectively. As designed, the optimized overlap of the involved magnetic orbitals leads to extremely strong magnetic interactions between the S = 3/2 metal ion and S = 1/2 radical spins, affording well isolated S T = 1 and S T = 1/2 ground states at room temperature.

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Matériaux
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Dates et versions

hal-02877510 , version 1 (24-11-2020)

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Xiaozhou Ma, Elizaveta Suturina, Mathieu Rouzières, Fabrice Wilhelm, Andrei Rogalev, et al.. A heteroleptic diradical Cr(III) complex with extended spin delocalization and large intramolecular magnetic exchange. Chemical Communications, 2020, 56 (36), pp.4906-4909. ⟨10.1039/d0cc00548g⟩. ⟨hal-02877510⟩

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