Y5(NiTe)2 crystallizes in the orthorhombic Cmcm space group. There are three inequivalent Y sites. In the first Y site, Y(1) is bonded in a 7-coordinate geometry to one Ni(2), two equivalent Ni(1), and four equivalent Te(1) atoms. In the second Y site, Y(2) is bonded in a 6-coordinate geometry to one Ni(1), two equivalent Ni(2), and three equivalent Te(1) atoms. In the third Y site, Y(3) is bonded in a square co-planar geometry to one Ni(1), one Ni(2), and two equivalent Te(1) atoms. There are two inequivalent Ni sites. In the first Ni site, Ni(1) is bonded in a 9-coordinate geometry to one Y(3), two equivalent Y(2), four equivalent Y(1), and two equivalent Ni(2) atoms. In the second Ni site, Ni(2) is bonded in a 9-coordinate geometry to one Y(3), two equivalent Y(1), four equivalent Y(2), and two equivalent Ni(1) atoms. Te(1) is bonded in a 8-coordinate geometry to one Y(3), three equivalent Y(2), and four equivalent Y(1) atoms.
Y5(NiTe)2 crystallizes in the orthorhombic Cmcm space group. There are three inequivalent Y sites. In the first Y site, Y(1) is bonded in a 7-coordinate geometry to one Ni(2), two equivalent Ni(1), and four equivalent Te(1) atoms. The Y(1)-Ni(2) bond length is 2.91 Å. Both Y(1)-Ni(1) bond lengths are 2.86 Å. There are two shorter (3.34 Å) and two longer (3.37 Å) Y(1)-Te(1) bond lengths. In the second Y site, Y(2) is bonded in a 6-coordinate geometry to one Ni(1), two equivalent Ni(2), and three equivalent Te(1) atoms. The Y(2)-Ni(1) bond length is 2.97 Å. Both Y(2)-Ni(2) bond lengths are 2.85 Å. There is one shorter (3.15 Å) and two longer (3.24 Å) Y(2)-Te(1) bond lengths. In the third Y site, Y(3) is bonded in a square co-planar geometry to one Ni(1), one Ni(2), and two equivalent Te(1) atoms. The Y(3)-Ni(1) bond length is 2.91 Å. The Y(3)-Ni(2) bond length is 3.17 Å. Both Y(3)-Te(1) bond lengths are 3.17 Å. There are two inequivalent Ni sites. In the first Ni site, Ni(1) is bonded in a 9-coordinate geometry to one Y(3), two equivalent Y(2), four equivalent Y(1), and two equivalent Ni(2) atoms. Both Ni(1)-Ni(2) bond lengths are 2.50 Å. In the second Ni site, Ni(2) is bonded in a 9-coordinate geometry to one Y(3), two equivalent Y(1), four equivalent Y(2), and two equivalent Ni(1) atoms. Te(1) is bonded in a 8-coordinate geometry to one Y(3), three equivalent Y(2), and four equivalent Y(1) atoms.