C 91 Crystal structure of the low-temperature form of K3PO4 [Text] / V. I. Voronin [et al.] // Inorganic Materials. - 2006. - Vol. 42, № 8. - P908-913 : il. - Библиогр. : с. 912-913 (15 назв.) Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): ОРТОФОСФАТ КАЛИЯ -- СТРУКТУРА КРИСТАЛЛИЧЕСКАЯ -- МЕТОД РИТВЕЛЬДА Аннотация: The crystal structure of the low-temperature form of K3PO4 has been determined for the first time using neutron diffraction (Rietveld method) and Raman spectroscopy: orthorhombic cell (sp. gr. Pnma, Z = 4), lattice parameters a = 1.12377(2) nm, b = 0.81046(1) nm, c = 0.59227(1) nm. The structure is made up of isolated [PO4] tetrahedra, with the potassium ions in between Полный текст |