title: Barium dierbium(III) tetra-sulfide.
abstract: Barium dierbium(III) tetra-sulfide, BaEr2S4, crystallizes with four formula units in the ortho-rhom-bic space group Pnma in the CaFe2O4 structure type. The asymmetric unit contains two Er, one Ba, and four S atoms, each with .m. site symmetry. The structure consists of channels formed by corner- and edge-sharing ErS6 octa-hedra in which Ba atoms reside. The resultant coordination of Ba is that of a bicapped trigonal prism.
authors.affiliation: Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208-3113, USA.
authors.forename: Adel
authors.initials: A
authors.lastname: Mesbah
authors.forename: Wojciech
authors.initials: W
authors.lastname: Stojko
authors.forename: James A
authors.initials: JA
authors.lastname: Ibers