Cs(2)UPd(3)Se(6)

Dicaesium uranium(IV) tripalladium(II) hexa­selenide, Cs(2)UPd(3)Se(6), crystallizes in the space group Fmmm in the Ba(2)NaCu(3)O(6) structure type. The asymmetric unit comprises the following atoms with site symmetries as shown: U1 (mm2), Cs1 (222), Cs2 (m2m), Pd1 (.m.), Pd2 (2mm), Se1 (m..), and S...

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Detalles Bibliográficos
Autores principales: Oh, George N., Ibers, James A.
Formato: Texto
Lenguaje:English
Publicado: International Union of Crystallography 2011
Materias:
Inorganic Papers
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3051717/
https://www.ncbi.nlm.nih.gov/pubmed/21522818
http://dx.doi.org/10.1107/S1600536810053924
Descripción
Sumario:Dicaesium uranium(IV) tripalladium(II) hexa­selenide, Cs(2)UPd(3)Se(6), crystallizes in the space group Fmmm in the Ba(2)NaCu(3)O(6) structure type. The asymmetric unit comprises the following atoms with site symmetries as shown: U1 (mm2), Cs1 (222), Cs2 (m2m), Pd1 (.m.), Pd2 (2mm), Se1 (m..), and Se2 (1). This layered structure contains six edge-sharing square-planar [PdSe(4)] units that form a hexa­gon. These, in turn, edge-share with [USe(6)] trigonal–prismatic units, forming an extended layer parallel to (010). The layers are stacked along [010]. They are staggered, and are separated by the Cs atoms. The Cs atoms are either coordinated in a square anti­prism of Se atoms or are ten-coordinate, with one square face and the opposite face hexa­gonal.

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