Materials Data on TbAgTe2 by Materials Project
TbAgTe2 crystallizes in the tetragonal P-42_1m space group. The structure is three-dimensional. Tb3+ is bonded to six equivalent Te2- atoms to form TbTe6 octahedra that share corners with eight equivalent TbTe6 octahedra, corners with four equivalent AgTe4 tetrahedra, edges with two equivalent TbTe6 octahedra, and edges with four equivalent AgTe4 tetrahedra. The corner-sharing octahedra tilt angles range from 42–57°. There are a spread of Tb–Te bond distances ranging from 3.04–3.20 Å. Ag1+ is bonded to four equivalent Te2- atoms to form AgTe4 tetrahedra that share corners with four equivalent TbTe6 octahedra, corners with four equivalent AgTe4 tetrahedra, and edges with four equivalent TbTe6 octahedra. The corner-sharing octahedral tilt angles are 62°. All Ag–Te bond lengths are 2.92 Å. Te2- is bonded in a 5-coordinate geometry to three equivalent Tb3+ and two equivalent Ag1+ atoms.