LuY(IrB)8 crystallizes in the tetragonal P-4m2 space group. Lu(1) is bonded in a 24-coordinate geometry to four equivalent Ir(2), eight equivalent Ir(1), four equivalent B(2), and eight equivalent B(1) atoms. Y(1) is bonded in a 24-coordinate geometry to four equivalent Ir(1), eight equivalent Ir(2), four equivalent B(1), and eight equivalent B(2) atoms. There are two inequivalent Ir sites. In the first Ir site, Ir(1) is bonded in a 5-coordinate geometry to two equivalent Lu(1), one Y(1), two equivalent B(2), and three equivalent B(1) atoms. In the second Ir site, Ir(2) is bonded in a 5-coordinate geometry to one Lu(1), two equivalent Y(1), two equivalent B(1), and three equivalent B(2) atoms. There are two inequivalent B sites. In the first B site, B(1) is bonded in a 6-coordinate geometry to two equivalent Lu(1), one Y(1), two equivalent Ir(2), three equivalent Ir(1), and one B(1) atom. In the second B site, B(2) is bonded in a 6-coordinate geometry to one Lu(1), two equivalent Y(1), two equivalent Ir(1), three equivalent Ir(2), and one B(2) atom.
LuY(IrB)8 crystallizes in the tetragonal P-4m2 space group. Lu(1) is bonded in a 24-coordinate geometry to four equivalent Ir(2), eight equivalent Ir(1), four equivalent B(2), and eight equivalent B(1) atoms. All Lu(1)-Ir(2) bond lengths are 2.96 Å. All Lu(1)-Ir(1) bond lengths are 3.20 Å. All Lu(1)-B(2) bond lengths are 3.13 Å. All Lu(1)-B(1) bond lengths are 3.08 Å. Y(1) is bonded in a 24-coordinate geometry to four equivalent Ir(1), eight equivalent Ir(2), four equivalent B(1), and eight equivalent B(2) atoms. All Y(1)-Ir(1) bond lengths are 2.98 Å. All Y(1)-Ir(2) bond lengths are 3.21 Å. All Y(1)-B(1) bond lengths are 3.13 Å. All Y(1)-B(2) bond lengths are 3.08 Å. There are two inequivalent Ir sites. In the first Ir site, Ir(1) is bonded in a 5-coordinate geometry to two equivalent Lu(1), one Y(1), two equivalent B(2), and three equivalent B(1) atoms. Both Ir(1)-B(2) bond lengths are 2.23 Å. There are two shorter (2.22 Å) and one longer (2.25 Å) Ir(1)-B(1) bond length. In the second Ir site, Ir(2) is bonded in a 5-coordinate geometry to one Lu(1), two equivalent Y(1), two equivalent B(1), and three equivalent B(2) atoms. Both Ir(2)-B(1) bond lengths are 2.22 Å. There are two shorter (2.22 Å) and one longer (2.28 Å) Ir(2)-B(2) bond length. There are two inequivalent B sites. In the first B site, B(1) is bonded in a 6-coordinate geometry to two equivalent Lu(1), one Y(1), two equivalent Ir(2), three equivalent Ir(1), and one B(1) atom. The B(1)-B(1) bond length is 1.87 Å. In the second B site, B(2) is bonded in a 6-coordinate geometry to one Lu(1), two equivalent Y(1), two equivalent Ir(1), three equivalent Ir(2), and one B(2) atom. The B(2)-B(2) bond length is 1.86 Å.