Browsing by Author "Baumer, Vyacheslav N."

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    Features of the structure of oxynitridophosphates K3MIII(PO3)3N (MI = Al, Ga)
    (CRYSTALLOGRAPHIC COMMUNICATIONS, 2021-11) Zatovsky, Igor V.; Ogorodnyk, Ivan V.; Baumer, Vyacheslav N.; Zhilyak, Ivan D.; Horda, Ruslana V.; Strutynska, Nataliya Yu.
    Crystals of trispotassium aluminum (or gallium) nitride tris(phosphate) were prepared by the self-flux’s method. All the metal cations and the N atom occupy special positions with site symmetry 3, while the P and O atoms are situated in general positions. The three-dimensional framework of these oxynitridophosphates is built up [Al(or Ga)O6] octahedra linked together via [(PO3)3N] groups (formed from three PO3N tetrahedra sharing an N vertex). The coordination environment of potassium atoms shows three types of polyhedral K1O9, K2O9N and K3O9N. An unusual tetradentate type of coordination of two potassium atoms with the [(PO3)3N]6- anion is observed.