Y5(Ir2Ge5)2 crystallizes in the tetragonal P4/mbm space group. There are three inequivalent Y sites. In the first Y site, Y(1) is bonded in a 16-coordinate geometry to four equivalent Ir(1), four equivalent Ge(2), and eight equivalent Ge(3) atoms. In the second Y site, Y(2) is bonded to four equivalent Ir(1), two equivalent Ge(1), two equivalent Ge(3), and four equivalent Ge(2) atoms to form face-sharing YGe8Ir4 cuboctahedra. In the third Y site, Y(3) is bonded in a 14-coordinate geometry to four equivalent Ir(1), two equivalent Ge(3), four equivalent Ge(1), and four equivalent Ge(2) atoms. Ir(1) is bonded in a 10-coordinate geometry to one Y(1), two equivalent Y(2), two equivalent Y(3), one Ge(1), two equivalent Ge(2), and two equivalent Ge(3) atoms. There are three inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 9-coordinate geometry to two equivalent Y(2), four equivalent Y(3), two equivalent Ir(1), and one Ge(1) atom. In the second Ge site, Ge(2) is bonded in a 8-coordinate geometry to one Y(1), two equivalent Y(2), two equivalent Y(3), two equivalent Ir(1), and one Ge(2) atom. In the third Ge site, Ge(3) is bonded in a 8-coordinate geometry to one Y(2), one Y(3), two equivalent Y(1), two equivalent Ir(1), and two equivalent Ge(3) atoms.
Y5(Ir2Ge5)2 crystallizes in the tetragonal P4/mbm space group. There are three inequivalent Y sites. In the first Y site, Y(1) is bonded in a 16-coordinate geometry to four equivalent Ir(1), four equivalent Ge(2), and eight equivalent Ge(3) atoms. All Y(1)-Ir(1) bond lengths are 3.22 Å. All Y(1)-Ge(2) bond lengths are 3.36 Å. All Y(1)-Ge(3) bond lengths are 2.99 Å. In the second Y site, Y(2) is bonded to four equivalent Ir(1), two equivalent Ge(1), two equivalent Ge(3), and four equivalent Ge(2) atoms to form face-sharing YGe8Ir4 cuboctahedra. All Y(2)-Ir(1) bond lengths are 3.13 Å. Both Y(2)-Ge(1) bond lengths are 2.95 Å. Both Y(2)-Ge(3) bond lengths are 3.08 Å. All Y(2)-Ge(2) bond lengths are 3.06 Å. In the third Y site, Y(3) is bonded in a 14-coordinate geometry to four equivalent Ir(1), two equivalent Ge(3), four equivalent Ge(1), and four equivalent Ge(2) atoms. All Y(3)-Ir(1) bond lengths are 3.34 Å. Both Y(3)-Ge(3) bond lengths are 3.38 Å. All Y(3)-Ge(1) bond lengths are 3.29 Å. All Y(3)-Ge(2) bond lengths are 3.30 Å. Ir(1) is bonded in a 10-coordinate geometry to one Y(1), two equivalent Y(2), two equivalent Y(3), one Ge(1), two equivalent Ge(2), and two equivalent Ge(3) atoms. The Ir(1)-Ge(1) bond length is 2.51 Å. There is one shorter (2.47 Å) and one longer (2.57 Å) Ir(1)-Ge(2) bond length. Both Ir(1)-Ge(3) bond lengths are 2.48 Å. There are three inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 9-coordinate geometry to two equivalent Y(2), four equivalent Y(3), two equivalent Ir(1), and one Ge(1) atom. The Ge(1)-Ge(1) bond length is 2.45 Å. In the second Ge site, Ge(2) is bonded in a 8-coordinate geometry to one Y(1), two equivalent Y(2), two equivalent Y(3), two equivalent Ir(1), and one Ge(2) atom. The Ge(2)-Ge(2) bond length is 2.53 Å. In the third Ge site, Ge(3) is bonded in a 8-coordinate geometry to one Y(2), one Y(3), two equivalent Y(1), two equivalent Ir(1), and two equivalent Ge(3) atoms. Both Ge(3)-Ge(3) bond lengths are 2.90 Å.