Materials Data on TbTlTe2 by Materials Project
TbTlTe2 is Caswellsilverite structured and crystallizes in the trigonal R-3m space group. The structure is three-dimensional. Tb3+ is bonded to six equivalent Te2- atoms to form TbTe6 octahedra that share corners with six equivalent TlTe6 octahedra, edges with six equivalent TbTe6 octahedra, and edges with six equivalent TlTe6 octahedra. The corner-sharing octahedral tilt angles are 8°. All Tb–Te bond lengths are 3.12 Å. Tl1+ is bonded to six equivalent Te2- atoms to form TlTe6 octahedra that share corners with six equivalent TbTe6 octahedra, edges with six equivalent TbTe6 octahedra, and edges with six equivalent TlTe6 octahedra. The corner-sharing octahedral tilt angles are 8°. All Tl–Te bond lengths are 3.49 Å. Te2- is bonded to three equivalent Tb3+ and three equivalent Tl1+ atoms to form a mixture of corner and edge-sharing TeTb3Tl3 octahedra. The corner-sharing octahedral tilt angles are 0°.