Th(IrB)4 is alpha Pu-derived structured and crystallizes in the tetragonal P4_2/n space group. Th(1) is bonded in a 20-coordinate geometry to eight equivalent Ir(1) and twelve equivalent B(1) atoms. Ir(1) is bonded in a 4-coordinate geometry to two equivalent Th(1) and four equivalent B(1) atoms. B(1) is bonded in a 6-coordinate geometry to three equivalent Th(1), four equivalent Ir(1), and one B(1) atom.
Th(IrB)4 is alpha Pu-derived structured and crystallizes in the tetragonal P4_2/n space group. Th(1) is bonded in a 20-coordinate geometry to eight equivalent Ir(1) and twelve equivalent B(1) atoms. There are four shorter (3.12 Å) and four longer (3.34 Å) Th(1)-Ir(1) bond lengths. There are a spread of Th(1)-B(1) bond distances ranging from 2.94-3.46 Å. Ir(1) is bonded in a 4-coordinate geometry to two equivalent Th(1) and four equivalent B(1) atoms. There are a spread of Ir(1)-B(1) bond distances ranging from 2.10-2.17 Å. B(1) is bonded in a 6-coordinate geometry to three equivalent Th(1), four equivalent Ir(1), and one B(1) atom. The B(1)-B(1) bond length is 1.86 Å.