Synthesis, structure, EPR spectra and heat capacity of cubic CsZnMoO 3F 3 oxyfluoride

Oxyfluoride CsZnMoO 3F 3 has been prepared with the solid state synthesis. It was found that crystal is isostructural to pyrochlore and its crystal structure was defined with the Rietveld method more exactly. Despite the fact that the main structural element in this compound is distorted polyhedron, the cubic phase has been realized. The stability of the cubic phase over the temperature range T = 110-293 K was proved by the heat capacity measurement. The EPR spectra were analyzed over the range of 77-295 K. The presence of defects was revealed. The comparison between compound under investigation and CsMnMoO 3F 3 was implemented. Just a tiny change of the thermal parameters and the cell parameters was registered.