Co2(SnTe)3 crystallizes in the trigonal R-3 space group. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded to one Sn(1), two equivalent Sn(2), one Te(1), and two equivalent Te(2) atoms to form corner-sharing CoSn3Te3 octahedra. The corner-sharing octahedral tilt angles range from 47-56°. In the second Co site, Co(2) is bonded to three equivalent Sn(1) and three equivalent Te(1) atoms to form corner-sharing CoSn3Te3 octahedra. The corner-sharing octahedral tilt angles range from 47-56°. There are two inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 4-coordinate geometry to one Co(1), one Co(2), and two equivalent Te(2) atoms. In the second Sn site, Sn(2) is bonded in a 4-coordinate geometry to two equivalent Co(1) and two equivalent Te(1) atoms. There are two inequivalent Te sites. In the first Te site, Te(2) is bonded in a 4-coordinate geometry to two equivalent Co(1) and two equivalent Sn(1) atoms. In the second Te site, Te(1) is bonded in a 4-coordinate geometry to one Co(1), one Co(2), and two equivalent Sn(2) atoms.
Co2(SnTe)3 crystallizes in the trigonal R-3 space group. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded to one Sn(1), two equivalent Sn(2), one Te(1), and two equivalent Te(2) atoms to form corner-sharing CoSn3Te3 octahedra. The corner-sharing octahedral tilt angles range from 47-56°. The Co(1)-Sn(1) bond length is 2.52 Å. There is one shorter (2.52 Å) and one longer (2.54 Å) Co(1)-Sn(2) bond length. The Co(1)-Te(1) bond length is 2.56 Å. There is one shorter (2.53 Å) and one longer (2.55 Å) Co(1)-Te(2) bond length. In the second Co site, Co(2) is bonded to three equivalent Sn(1) and three equivalent Te(1) atoms to form corner-sharing CoSn3Te3 octahedra. The corner-sharing octahedral tilt angles range from 47-56°. All Co(2)-Sn(1) bond lengths are 2.54 Å. All Co(2)-Te(1) bond lengths are 2.53 Å. There are two inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 4-coordinate geometry to one Co(1), one Co(2), and two equivalent Te(2) atoms. There is one shorter (2.93 Å) and one longer (3.12 Å) Sn(1)-Te(2) bond length. In the second Sn site, Sn(2) is bonded in a 4-coordinate geometry to two equivalent Co(1) and two equivalent Te(1) atoms. There is one shorter (2.93 Å) and one longer (3.10 Å) Sn(2)-Te(1) bond length. There are two inequivalent Te sites. In the first Te site, Te(2) is bonded in a 4-coordinate geometry to two equivalent Co(1) and two equivalent Sn(1) atoms. In the second Te site, Te(1) is bonded in a 4-coordinate geometry to one Co(1), one Co(2), and two equivalent Sn(2) atoms.