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Title: Crystal structure of RbTa(PO/sub 4/)/sub 2/ and some laws governing the structure of tantalum orthophosphates

Abstract

The authors have studied the crystal structure of RbTa(PO/sub 4/2/. An investigation of the three mixed tantalum orthophosphates TaH(PO/sub 4/)/sub 2/, and CsTa(PO/sub 4/)/sub 2/ revealed the layered structure of the crystals, and showed that, despite the identical structure of the tantalum-phosphate networks, the symmetry of the layer and the cell as a whole is influenced by the radius of the univalent cation. In the case of TaH(PO/sub 4/)/sub 2/ owing to the small size of the hydrogen atom the layers are brought so far together that in each fragment forming a layer (tantalum octahedron surrounded by six PO/sub 4/ tetrahedra) two orthophosphate tetrahedra are common to adjacent layers.

Authors:
; ; ;
Publication Date:
Research Org.:
N. S. Kurnakov Institute of General and Inorganic Chemistry, USSR
OSTI Identifier:
5797332
Resource Type:
Journal Article
Journal Name:
Inorg. Mater. (Engl. Transl.); (United States)
Additional Journal Information:
Journal Volume: 22:8; Other Information: Translated from Izv. Akad. Nauk. SSSR, Neorg. Mater.; 22: No. 8, 1369-1372(Aug 1986)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ACID PHOSPHATES; CRYSTAL LATTICES; CESIUM PHOSPHATES; RUBIDIUM PHOSPHATES; TANTALUM PHOSPHATES; BOND ANGLE; BOND LENGTHS; INTERATOMIC DISTANCES; IONIC CRYSTALS; LATTICE PARAMETERS; TEMPERATURE DEPENDENCE; X-RAY DIFFRACTION; ALKALI METAL COMPOUNDS; CESIUM COMPOUNDS; COHERENT SCATTERING; CRYSTAL STRUCTURE; CRYSTALS; DIFFRACTION; DIMENSIONS; DISTANCE; LENGTH; OXYGEN COMPOUNDS; PHOSPHATES; PHOSPHORUS COMPOUNDS; REFRACTORY METAL COMPOUNDS; RUBIDIUM COMPOUNDS; SCATTERING; TANTALUM COMPOUNDS; TRANSITION ELEMENT COMPOUNDS; 360602* - Other Materials- Structure & Phase Studies

Citation Formats

Nikolaev, V P, Sadikov, G G, Lavrov, A V, and Porai-Koshits, M A. Crystal structure of RbTa(PO/sub 4/)/sub 2/ and some laws governing the structure of tantalum orthophosphates. United States: N. p., 1987. Web.
Nikolaev, V P, Sadikov, G G, Lavrov, A V, & Porai-Koshits, M A. Crystal structure of RbTa(PO/sub 4/)/sub 2/ and some laws governing the structure of tantalum orthophosphates. United States.
Nikolaev, V P, Sadikov, G G, Lavrov, A V, and Porai-Koshits, M A. 1987. "Crystal structure of RbTa(PO/sub 4/)/sub 2/ and some laws governing the structure of tantalum orthophosphates". United States.
@article{osti_5797332,
title = {Crystal structure of RbTa(PO/sub 4/)/sub 2/ and some laws governing the structure of tantalum orthophosphates},
author = {Nikolaev, V P and Sadikov, G G and Lavrov, A V and Porai-Koshits, M A},
abstractNote = {The authors have studied the crystal structure of RbTa(PO/sub 4/2/. An investigation of the three mixed tantalum orthophosphates TaH(PO/sub 4/)/sub 2/, and CsTa(PO/sub 4/)/sub 2/ revealed the layered structure of the crystals, and showed that, despite the identical structure of the tantalum-phosphate networks, the symmetry of the layer and the cell as a whole is influenced by the radius of the univalent cation. In the case of TaH(PO/sub 4/)/sub 2/ owing to the small size of the hydrogen atom the layers are brought so far together that in each fragment forming a layer (tantalum octahedron surrounded by six PO/sub 4/ tetrahedra) two orthophosphate tetrahedra are common to adjacent layers.},
doi = {},
url = {https://www.osti.gov/biblio/5797332}, journal = {Inorg. Mater. (Engl. Transl.); (United States)},
number = ,
volume = 22:8,
place = {United States},
year = {Thu Jan 01 00:00:00 EST 1987},
month = {Thu Jan 01 00:00:00 EST 1987}
}