TY - JOUR
T1 - BaLn 2 4 (Ln = Er, Tm and Yb)
AU - Bugaris, Daniel E.
AU - Ibers, James A
PY - 2009/8/22
Y1 - 2009/8/22
N2 - The compounds BaLn 2Se4 (Ln = rare-earth metal = lanthanide = Er, Tm and Yb), namely barium di(erbium/thulium/ytterbium) tetra-selenide, crystallize in the ortho-rhom-bic space group Pnma in the CaFe2O4 structure type. In this structure type, all atoms possess m symmetry. The Ln atoms are octa-hedrally coordinated by six Se atoms. A three-dimensional channel structure is formed by the corner- and edge-sharing of these LnSe6 octa-hedra. The Ba atoms are coordinated to eight Se atoms in a bicapped trigonal-prismatic arrangement, and they occupy the channels of the three-dimensional framework.
AB - The compounds BaLn 2Se4 (Ln = rare-earth metal = lanthanide = Er, Tm and Yb), namely barium di(erbium/thulium/ytterbium) tetra-selenide, crystallize in the ortho-rhom-bic space group Pnma in the CaFe2O4 structure type. In this structure type, all atoms possess m symmetry. The Ln atoms are octa-hedrally coordinated by six Se atoms. A three-dimensional channel structure is formed by the corner- and edge-sharing of these LnSe6 octa-hedra. The Ba atoms are coordinated to eight Se atoms in a bicapped trigonal-prismatic arrangement, and they occupy the channels of the three-dimensional framework.
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U2 - 10.1107/S0108270109030571
DO - 10.1107/S0108270109030571
M3 - Article
C2 - 19726843
AN - SCOPUS:69949112067
SN - 0108-2701
VL - 65
JO - Acta Crystallographica Section C: Crystal Structure Communications
JF - Acta Crystallographica Section C: Crystal Structure Communications
IS - 9
ER -