Abstract
The hexahydrated potassium cobalt monohydrogenophosphate K2[Co(H2O)6](HPO4)2 was synthesized and characterized by single crystal X-Ray diffraction, infrared spectroscopy, thermal, magnetic and dielectric conductivity. The Framework of the compound is a three dimensional built up from Co(H2O)6 octahedron, KO8 polyhedron and HPO42− tetrahedron. The Infrared spectrum confirms existence of P-O and O-H bonds of the anionic monophosphate HPO42− and O(W)-H of the water molecules. The structural changes occurring during heating have been investigated by TG-DTA thermal studies. A law negative Weiss constant suggested that a weak antiferromagnetic exchange interaction between the Co2+ ions in the crystal lattice. The conductivity study of our compound shows that the mechanism conduction provided by the jump of H+ protons between different ions in the crystal lattice.
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