6533b86cfe1ef96bd12c7f0f
RESEARCH PRODUCT
Spin Frustration in Triangular Cu 3 II Complexes with 6‐Methyl‐2‐pyridyloxime as Ligand – Synthesis, Structural, and Magnetic Characterization
Franz A. MautnerGina VlahopoulouFrancesc LloretAlbert Escuersubject
Antisymmetric exchangeLigandChemistrymedia_common.quotation_subjectFrustrationchemistry.chemical_elementCopperlaw.inventionInorganic ChemistryMagnetizationCrystallographyNuclear magnetic resonancelawAntiferromagnetismSpin (physics)Electron paramagnetic resonancemedia_commondescription
In the present work, new examples of μ3-OH/oximato Cu3 triangles have been obtained by treatment of different copper salts with 6-methyl-2-pyridylaldoxime [6-MepyC(H)NOH, 6-mepaoH]. Depending on the anion, the compounds [Cu3(OH)(6-mepao)3(O2CPh)2] (1), [Cu6(OH)2(6-mepao)6(NO3)3](NO3)·H2O (2·H2O) and [Cu6(OH)2(6-mepao)6(ClO4)3](ClO4) (3) formed and were characterized. Complex 1 is an isolated triangle, whereas 2 and 3 are hexanuclear compounds with two triangular subunits linked by anionic bridges. Susceptibility measurements show very strong antiferromagnetic interactions and the presence of antisymmetric exchange at low temperature. The magnetic properties of these frustrated triangles have been analyzed in terms of susceptibility, magnetization and electron paramagnetic resonance (EPR) experiments.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2013-12-03 | European Journal of Inorganic Chemistry |