Ba(GdSe2)2 crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. Ba2+ is bonded in a 8-coordinate geometry to eight Se2- atoms. There are a spread of Ba–Se bond distan
LuVO2 crystallizes in the tetragonal I4_1/amd space group. The structure is three-dimensional. Lu is bonded to six equivalent O atoms to form edge-sharing LuO6 octahedra. There are four shorter (2.27