Crystal Structures of the Newly Synthesized Kdy and Ktb Aluminosilicates

The crystal structures are determined for KDy[AlSi 4 O 12 ]·0.41H 2 O and KTb[AlSi 4 O 12 ]·0.32 H 2 O compounds synthesized under hydrothermal conditions, which crystallize in the space group C 2/ c with the unit cell parameters a = 26.6956(6) Å and 26.619(1) Å, b = 7.2477(2) Å and 7.2553(3) Å, c =...

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Bibliographic Details
Published in:Journal of structural chemistry 2018-03, Vol.59 (2), p.377-383
Main Authors: Kaneva, E. V., Suvorova, L. F., Tauson, V. L.
Format: Article
Language:English
Subjects:
Aluminosilicates
Aluminum silicates
Atomic
Atomic/Molecular Structure and Spectra
Axes of rotation
Chemistry
Chemistry and Materials Science
Crystal structure
Inorganic Chemistry
Molecular
Optical and Plasma Physics
Physical Chemistry
Rotation
Solid State Physics
Synthesis
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Summary:The crystal structures are determined for KDy[AlSi 4 O 12 ]·0.41H 2 O and KTb[AlSi 4 O 12 ]·0.32 H 2 O compounds synthesized under hydrothermal conditions, which crystallize in the space group C 2/ c with the unit cell parameters a = 26.6956(6) Å and 26.619(1) Å, b = 7.2477(2) Å and 7.2553(3) Å, c = 14.7705 Å and 14.8200(6) Å, β = 123.7721° and 123.5149° for KDy and KTb aluminosilicates respectively. Tetrahedral layers in the structures of the studied crystals differ in their packing order and can be matched in space with a twofold rotational symmetry axis. In the studied phases Dy and Tb present in a trivalent form.
ISSN:0022-4766
1573-8779
DOI:10.1134/S0022476618020178