Sie befinden Sich nicht im Netzwerk der Universität Paderborn. Der Zugriff auf elektronische Ressourcen ist gegebenenfalls nur via VPN oder Shibboleth (DFN-AAI) möglich. mehr Informationen...
Crystal Structures of the Newly Synthesized Kdy and Ktb Aluminosilicates
Ist Teil von
Journal of structural chemistry, 2018-03, Vol.59 (2), p.377-383
Ort / Verlag
Moscow: Pleiades Publishing
Erscheinungsjahr
2018
Link zum Volltext
Quelle
Alma/SFX Local Collection
Beschreibungen/Notizen
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.