Ir4Ga8B crystallizes in the tetragonal I4_1/acd space group. There are two inequivalent Ir sites. In the first Ir site, Ir(1) is bonded in a 9-coordinate geometry to four equivalent Ga(1), four equivalent Ga(2), and one B(1) atom. In the second Ir site, Ir(2) is bonded in a 9-coordinate geometry to four equivalent Ga(1), four equivalent Ga(2), and one B(1) atom. There are two inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a 4-coordinate geometry to two equivalent Ir(1) and two equivalent Ir(2) atoms. In the second Ga site, Ga(2) is bonded in a 4-coordinate geometry to two equivalent Ir(1) and two equivalent Ir(2) atoms. B(1) is bonded in a square co-planar geometry to two equivalent Ir(1) and two equivalent Ir(2) atoms.
Ir4Ga8B crystallizes in the tetragonal I4_1/acd space group. There are two inequivalent Ir sites. In the first Ir site, Ir(1) is bonded in a 9-coordinate geometry to four equivalent Ga(1), four equivalent Ga(2), and one B(1) atom. There are two shorter (2.64 Å) and two longer (2.65 Å) Ir(1)-Ga(1) bond lengths. There are two shorter (2.61 Å) and two longer (2.63 Å) Ir(1)-Ga(2) bond lengths. The Ir(1)-B(1) bond length is 2.17 Å. In the second Ir site, Ir(2) is bonded in a 9-coordinate geometry to four equivalent Ga(1), four equivalent Ga(2), and one B(1) atom. There are two shorter (2.62 Å) and two longer (2.65 Å) Ir(2)-Ga(1) bond lengths. There are two shorter (2.66 Å) and two longer (2.67 Å) Ir(2)-Ga(2) bond lengths. The Ir(2)-B(1) bond length is 2.14 Å. There are two inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a 4-coordinate geometry to two equivalent Ir(1) and two equivalent Ir(2) atoms. In the second Ga site, Ga(2) is bonded in a 4-coordinate geometry to two equivalent Ir(1) and two equivalent Ir(2) atoms. B(1) is bonded in a square co-planar geometry to two equivalent Ir(1) and two equivalent Ir(2) atoms.