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A Sb 2 (SO 4 ) 2 (PO 4 ) ( A = H 3 O + , K, Rb): Layered Structure Containing Ordered Sulfate and Phosphate Anions
Author(s) -
Zhao Xiao,
Mei Dajiang,
Xu Jingli,
Wu Yuandong
Publication year - 2016
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.201500743
Subject(s) - isostructural , triclinic crystal system , crystallography , octahedron , raman spectroscopy , crystal structure , space group , alkali metal , chemistry , spectroscopy , infrared spectroscopy , x ray crystallography , bar (unit) , materials science , diffraction , physics , organic chemistry , quantum mechanics , optics , meteorology
Three compounds A Sb 2 (SO 4 ) 2 (PO 4 ) ( A = H 3 O + , K, Rb) were obtained from the reactions of Sb 2 O 3 , A 2 CO 3 ( A = Li, Rb) or K 2 SO 4 and NH 4 H 2 PO 4 in H 2 SO 4 (98 %) at 220–250 °C. Their structures were determined by single‐crystal X‐ray diffraction. All compounds crystallize in the triclinic space group P $\bar{1}$ (no.2) and are isostructural. The crystal structures consist of two‐dimensional 2 ∞ [Sb 2 (SO 4 ) 2 (PO 4 )] – anionic layers and alkali cations, which are located between anionic layers. The anionic layers are composed of [SbO 4 ] ψ‐trigonal bipyramids, [SbO 5 ] ψ octahedra, [SO 4 ] tetrahedra, and [PO 4 ] tetrahedra. All compounds are characterized by solid state UV/Vis/NIR diffuse reflectance spectra, FT‐IR spectroscopy, and Raman spectroscopy.