Coordination compounds of dysprosium(III) with 3-methyl-1-phenyl-4-formylpyrazol-5-one diacyldihydrazones

Coordination compounds of dysprosium(III) with diacyldihydrazones of saturated dicarboxylic acids, imino-, oxo-, and thiodiacetic acids, and 3-methyl-1-phenyl-4-formylpyrazol-5-one (H 4 L) are described. [Dy 2 (H 2 L O ) 3 ] · 7.5CH 3 OH · 3H 2 O was subjected to X-ray diffraction analysis: space group , a = 17.349(1) Å, c = 65.669(4) Å, Z = 6, R = 0.076, R w = 0.243 (5301 reflections with I ≥ 2σ( I )). The complex is established to have a binuclear structure and contain dysprosium ions linked via three bridging ligands. The coordination polyhedron of the Dy atom had a three-capped trigonal prism geometry. The magnetic properties of the synthesized complexes were studied.