Metal dilution enabled quantum coherence in a planar Ni(iii) dmit complex

Abstract

Magnetically diluted (TBA)[Ni_xAu_1−x(dmit)₂] samples were prepared by incorporating Ni(III) centres into an isostructural diamagnetic Au(dmit)₂ lattice to reduce intermolecular antiferromagnetic interactions. The diluted complex exhibits slow relaxation, long spin–lattice relaxation and coherence times at 4 K, and clear Rabi oscillations, indicating that planar Ni(III)-dmit complexes can support molecular-spin-qubit behaviour.