title: Barium manganese(II) selenostannate(IV), BaMnSnSe(4).
abstract: The title compound, BaMnSnSe(4), was obtained by reaction of the elements at 1123 K in an evacuated silica tube. It adopts the BaCdSnS(4) structure type, which is a variant of the SrIn(2)Se(4) structure type. Its structure consists of distorted edge-sharing tetra-hedra, alternating with Mn and Sn atoms as central atom. These [MnSnSe(6)] units display corner sharing, forming stacked infinite layers in the ac plane. The three different Ba(2+) atoms are located between the [MnSnSe(6)] layers, two on twofold rotation axes, and exhibit distorted square-antiprismatic coordinations.
authors.affiliation: Department of Chemistry, Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario,  Canada  N2L 3G1.
authors.forename: Abdeljalil
authors.initials: A
authors.lastname: Assoud
authors.forename: Bryan A
authors.initials: BA
authors.lastname: Kuropatwa
authors.forename: Holger
authors.initials: H
authors.lastname: Kleinke