A tetraazanaphthalene radical-bridged dysprosium single-molecule magnet with a large coercive field.

ABSTRACT: Generating strong magnetic coupling poses a fundamental challenge in the design of multinuclear lanthanide complexes. The inherently contracted nature of the valence 4f orbitals precludes the lanthanides from engaging in covalent bonding with closed-shell ligands. The employment of open-shell bridging ligands instead allows efficient interaction of the diffuse radical spin orbitals with the 4f shell of the lanthanides. Herein, we introduce the azaacene ligand, 1,4,5,8-tetraazanaphthalene (tan), into rare earth chemistry: first, we synthesized [(Cp*₂Dy)₂(μ-tan)] (1, Cp* = pentamethylcyclopentadienyl) containing a diamagnetic tan^2- bridge from a salt metathesis reaction of Cp*₂DyBPh₄ and K₂(tan). Second, we chemically oxidised

SUBMITTER: Benner F 

PROVIDER: S-EPMC12498250 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature