La(IrB)2 is Magnesium tetraboride-derived structured and crystallizes in the orthorhombic Fddd space group. La(1) is bonded to four equivalent Ir(1) and four equivalent B(1) atoms to form distorted face-sharing LaB4Ir4 hexagonal bipyramids. Ir(1) is bonded in a 7-coordinate geometry to two equivalent La(1) and five equivalent B(1) atoms. B(1) is bonded in a 8-coordinate geometry to two equivalent La(1), five equivalent Ir(1), and one B(1) atom.
La(IrB)2 is Magnesium tetraboride-derived structured and crystallizes in the orthorhombic Fddd space group. La(1) is bonded to four equivalent Ir(1) and four equivalent B(1) atoms to form distorted face-sharing LaB4Ir4 hexagonal bipyramids. There are two shorter (3.08 Å) and two longer (3.09 Å) La(1)-Ir(1) bond lengths. There are two shorter (2.90 Å) and two longer (2.93 Å) La(1)-B(1) bond lengths. Ir(1) is bonded in a 7-coordinate geometry to two equivalent La(1) and five equivalent B(1) atoms. There are a spread of Ir(1)-B(1) bond distances ranging from 2.19-2.38 Å. B(1) is bonded in a 8-coordinate geometry to two equivalent La(1), five equivalent Ir(1), and one B(1) atom. The B(1)-B(1) bond length is 1.80 Å.