Materials Data on TmAgTe2 by Materials Project
TmAgTe2 is Caswellsilverite-like structured and crystallizes in the trigonal P-3m1 space group. The structure is three-dimensional. Tm3+ is bonded to six equivalent Te2- atoms to form TmTe6 octahedra that share corners with twelve equivalent AgTe6 octahedra, edges with six equivalent TmTe6 octahedra, and faces with two equivalent AgTe6 octahedra. The corner-sharing octahedral tilt angles are 48°. All Tm–Te bond lengths are 3.07 Å. Ag1+ is bonded to six equivalent Te2- atoms to form AgTe6 octahedra that share corners with twelve equivalent TmTe6 octahedra, edges with six equivalent AgTe6 octahedra, and faces with two equivalent TmTe6 octahedra. The corner-sharing octahedral tilt angles are 48°. All Ag–Te bond lengths are 3.05 Å. Te2- is bonded in a 6-coordinate geometry to three equivalent Tm3+ and three equivalent Ag1+ atoms.