Collect. Czech. Chem. Commun. 1980, 45, 3262-3265

Study of decreased T site-symmetry in the mixed crystals Ag3(PO4,AsO4)

Alexander Muck, Jindřich Čáp and Bohumil Hájek

Department of Inorganic Chemistry, Prague Institute of Chemical Technology, 166 28 Prague 6


The system Ag3PO4-Ag3AsO4 has been studied by X-ray analysis of the powder samples and infrared absorption spectra. Formation of cubic mixed crystals of the substitution type has been found within the whole concentration range. For the tetrahedral anions at the site T(2) lowering of the site-symmetry to the effective site-symmetry C3 has been found on the basis of the site-and factor-group analyses of the space group Td4.