Polytypism and oxo-tungstate polyhedra polymerization in novel complex uranyl tungstates.
Three new uranyl tungstates, α-, β-Cs(2)[(UO(2))(2)(W(2)O(9))], and Rb(6)[(UO(2))(7)(WO(5))(2)(W(3)O(13))O(2)], have been obtained by high temperature solid state reactions. All three compounds display novel structure topologies: α- and β-Cs(2)[(UO(2))(2)(W(2)O(9))] are based upon layers with a new topology that can be related to the uranophane topology; Rb(6)[(UO(2))(7)(WO(5))(2)(W(3)O(13))O(2)] is a rare example of a non-molecular inorganic phase with layers containing oxo-tungstate trimers. The structural relationship between α- and β-Cs(2)[(UO(2))(2)(W(2)O(9))] can be assigned to polytypism.
Lobachevsky State University of Nizhny Novgorod, Gagarin Av. 23b, 603950 Nizhny Novgorod, Russia.
Andrey N
AN
Seliverstov
Evgeny V
EV
Suleimanov
Evgeny V
EV
Chuprunov
Nikolay V
NV
Somov
Elena M
EM
Zhuchkova
Maxim I
MI
Lelet
Konstantin B
KB
Rozov
Wulf
W
Depmeier
Sergey V
SV
Krivovichev
Evgeny V
EV
Alekseev
D015394:Molecular Structure; D058105:Polymerization; D017973:Tungsten Compounds / Q000138:chemical synthesis* / Q000737:chemistry; D017974:Uranium Compounds / Q000138:chemical synthesis* / Q000737:chemistry
D017973:Tungsten Compounds; D017974:Uranium Compounds