Magnetic Blocking in Fluoflavine Radical-Bridged Dilanthanide Complexes.

ABSTRACT: Magnetic exchange coupling is difficult to foster in polynuclear lanthanide (Ln) complexes and poorly understood. While coupling Ln ions through closed-shell ligands is inherently weak due to the contracted 4f orbitals, placing open-shell ligands instead has proven to promote orders of magnitude stronger coupling, giving rise to single-molecule magnets (SMMs) innate to real magnetic memory effect in the case of the anisotropic Ln ions. Notably, the impact of radical bridges with differing oxidation states on magnetic blocking remains unexplored due to lack of Ln SMMs with radicals in two distinct charge states. Herein, the first dilanthanide complexes (Ln = Gd, Dy) containing fluoflavine (flv) bridges, [(Cp*₂Ln)₂(μ-flv^z)]X, (where X = [Al(OC{CF₃}

SUBMITTER: Benner F 

PROVIDER: S-EPMC12752457 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature