NaSmTe2 is Caswellsilverite structured and crystallizes in the trigonal R-3m space group. Na(1) is bonded to six equivalent Te(1) atoms to form NaTe6 octahedra that share corners with six equivalent Sm(1)Te6 octahedra, edges with six equivalent Na(1)Te6 octahedra, and edges with six equivalent Sm(1)Te6 octahedra. The corner-sharing octahedral tilt angles are 3°. Sm(1) is bonded to six equivalent Te(1) atoms to form SmTe6 octahedra that share corners with six equivalent Na(1)Te6 octahedra, edges with six equivalent Na(1)Te6 octahedra, and edges with six equivalent Sm(1)Te6 octahedra. The corner-sharing octahedral tilt angles are 3°. Te(1) is bonded to three equivalent Na(1) and three equivalent Sm(1) atoms to form a mixture of corner and edge-sharing TeNa3Sm3 octahedra. The corner-sharing octahedra are not tilted.
NaSmTe2 is Caswellsilverite structured and crystallizes in the trigonal R-3m space group. Na(1) is bonded to six equivalent Te(1) atoms to form NaTe6 octahedra that share corners with six equivalent Sm(1)Te6 octahedra, edges with six equivalent Na(1)Te6 octahedra, and edges with six equivalent Sm(1)Te6 octahedra. The corner-sharing octahedral tilt angles are 3°. All Na(1)-Te(1) bond lengths are 3.25 Å. Sm(1) is bonded to six equivalent Te(1) atoms to form SmTe6 octahedra that share corners with six equivalent Na(1)Te6 octahedra, edges with six equivalent Na(1)Te6 octahedra, and edges with six equivalent Sm(1)Te6 octahedra. The corner-sharing octahedral tilt angles are 3°. All Sm(1)-Te(1) bond lengths are 3.15 Å. Te(1) is bonded to three equivalent Na(1) and three equivalent Sm(1) atoms to form a mixture of corner and edge-sharing TeNa3Sm3 octahedra. The corner-sharing octahedra are not tilted.