Structure of uranium-containing elpasolites M/sub 2/NaUH/sub 6/

Journal Article · · Sov. Radiochem. (Engl. Transl.); (United States)

OSTI ID:6453907

Aurov, N A; Volkov, V A; Chirkst, D E

The compounds M/sub 2/NaUH/sub 6/, where M = K, Rb, and Cs and H = Cl and Br, were obtained by melting binary components. The compound Rb/sub 2/NaUBr/sub 6/ decomposes into Rb/sub 2/UBr/sub 5/ and NaBr. The structure was studied by the polycrystal method: K/sub 2/NaUCl/sub 6/ has a hexagonal structure of the ..cap alpha..-K/sub 2/LiAlF/sub 6/ type, Rb/sub 2/NaUCl/sub 6/ is orthorhombic, and Cs/sub 2/NaUCl/sub 6/ type is F-cubic. K/sub 2/NaUBr/sub 6/ has a tetragonal structure of the Rb/sub 2/NaTmCl/sub 6/ type and Cs/sub 2/NaUBr/sub 6/ is P-cubic. The regularities in the elpasolite structure are discussed in the light of the method of genetic structure types.

• OSTI ID: 6453907
• Journal Information: Sov. Radiochem. (Engl. Transl.); (United States), Vol. 25:3; Other Information: Translated from Radiokhimiya (USSR); 25: No. 3, 366-372(May-Jun 1983)
• Country of Publication: United States
• Language: English

Related Subjects

38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
CESIUM COMPOUNDS
CRYSTAL STRUCTURE
SYNTHESIS
POTASSIUM COMPOUNDS
RUBIDIUM COMPOUNDS
URANIUM COMPOUNDS
BROMIDES
CHLORIDES
ACTINIDE COMPOUNDS
ALKALI METAL COMPOUNDS
BROMINE COMPOUNDS
CHLORINE COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
400702* - Radiochemistry & Nuclear Chemistry- Properties of Radioactive Materials
400201 - Chemical & Physicochemical Properties