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- Title
ASb<sub>2</sub>(SO<sub>4</sub>)<sub>2</sub>(PO<sub>4</sub>) ( A = H<sub>3</sub>O<sup>+</sup>, K, Rb): Layered Structure Containing Ordered Sulfate and Phosphate Anions.
- Authors
Zhao, Xiao; Mei, Dajiang; Xu, Jingli; Wu, Yuandong
- Abstract
Three compounds ASb2(SO4)2(PO4) ( A = H3O+, K, Rb) were obtained from the reactions of Sb2O3, A2CO3 ( A = Li, Rb) or K2SO4 and NH4H2PO4 in H2SO4 (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∞[Sb2(SO4)2(PO4)]- anionic layers and alkali cations, which are located between anionic layers. The anionic layers are composed of [SbO4] ψ-trigonal bipyramids, [SbO5] ψ octahedra, [SO4] tetrahedra, and [PO4] tetrahedra. All compounds are characterized by solid state UV/Vis/NIR diffuse reflectance spectra, FT-IR spectroscopy, and Raman spectroscopy.
- Subjects
ANTIMONY; CRYSTAL structure; OPTICAL properties; ANIONS; X-ray diffraction
- Publication
Zeitschrift für Anorganische und Allgemeine Chemie, 2016, Vol 642, Issue 4, p343
- ISSN
0044-2313
- Publication type
Article
- DOI
10.1002/zaac.201500743