Unusual slow magnetic relaxation in a sulfate-bridged copper( ii ) complex with 1-(2-pyridylazo)-2-naphthol ligand
Abstract
] was isolated as a highly crystalline material, where the two copper(II) centers are connected by a sulfate bridge. Single-crystal X-ray diffraction (SC-XRD) combined with UV-Vis spectroscopy confirms a square-pyramidal coordination around each Cu(II) center in both the solid state and solution. Remarkably, magnetic studies revealed an unconventional slow magnetic relaxation under applied dc fields, characterized by three field-dependent processes spanning more than four orders of magnitude in frequency. These findings broaden the design space of transition-metal molecular magnets by showing that simple sulfate bridging and π-conjugated ligands can engender complex relaxation dynamics in Cu(II) dimers.
Fields of Study & Subjects
Magnetism in coordination complexes
Metal complexes synthesis and properties
Metal-Catalyzed Oxygenation Mechanisms
Publication details
- Journal / source
- Dalton Transactions
- Publisher
- Royal Society of Chemistry (RSC)
- Volume
- 55
- Issue
- 8
- Pages
- 3336–3345
- Publication date
- 1 January 2026
- Language
- EN