Nb3Sb2Te5 crystallizes in the cubic I-43m space group. Nb(1) is bonded in a 8-coordinate geometry to two equivalent Sb(1), two equivalent Te(1), and four equivalent Te(2) atoms. Sb(1) is bonded in a 7-coordinate geometry to three equivalent Nb(1) and four 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 four equivalent Nb(1) atoms. In the second Te site, Te(1) is bonded in a 7-coordinate geometry to three equivalent Nb(1) and four equivalent Sb(1) atoms.
Nb3Sb2Te5 crystallizes in the cubic I-43m space group. Nb(1) is bonded in a 8-coordinate geometry to two equivalent Sb(1), two equivalent Te(1), and four equivalent Te(2) atoms. Both Nb(1)-Sb(1) bond lengths are 2.91 Å. Both Nb(1)-Te(1) bond lengths are 2.89 Å. All Nb(1)-Te(2) bond lengths are 2.93 Å. Sb(1) is bonded in a 7-coordinate geometry to three equivalent Nb(1) and four equivalent Te(1) atoms. There is one shorter (2.93 Å) and three longer (3.26 Å) Sb(1)-Te(1) bond lengths. There are two inequivalent Te sites. In the first Te site, Te(2) is bonded in a 4-coordinate geometry to four equivalent Nb(1) atoms. In the second Te site, Te(1) is bonded in a 7-coordinate geometry to three equivalent Nb(1) and four equivalent Sb(1) atoms.