Single-Ion Magnets Based on Mononuclear Cobalt(II) Complexes with Sulfadiazine

VILLA-PÉREZ, CRISTIAN; OYARZABAL, ITZIAR; ECHEVERRÍA, GUSTAVO A.; VALENCIA-URIBE, GLORIA C.; SECO, JOSÉ M.; SORIA, DELIA B.

EUROPEAN JOURNAL OF INORGANIC CHEMISTRY

WILEY-V C H VERLAG GMBH

Año: 2016 vol. 2016 p. 4835 - 4841

1434-1948

The already reported monomeric complex Co(SDZ)2bpy (1) and the new ternary complex Co(SDZ)2(6MQ)2(2) (SDZ = sulfadiazine, bpy = 2,2′-bipyridine, and 6MQ = 6-methoxyquinoline) have been synthesized in order to study their magnetic properties. X-ray diffraction studies indicate that in both compounds the SDZ acts as a bidentate ligand coordinating through the sulfonamide and the pyrimidine N atoms giving rise to a CoN6coordination sphere. The complexes have been characterized based on elemental analyses, FTIR, UV/Vis spectroscopy, and thermogravimetric analysis (TGA, only for 2). Compounds 1 and 2 have been characterized magnetically, and they show slow relaxation of the magnetization below 9 and 6 K, respectively.