IrO3 crystallizes in the orthorhombic Amm2 space group. Ir(1) is bonded to one O(1), one O(3), two equivalent O(2), and two equivalent O(4) atoms to form corner-sharing IrO6 octahedra. The corner-sharing octahedral tilt angles range from 2-44°. There are four inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to two equivalent Ir(1) atoms. In the second O site, O(2) is bonded in a bent 150 degrees geometry to two equivalent Ir(1) atoms. In the third O site, O(3) is bonded in a bent 150 degrees geometry to two equivalent Ir(1) atoms. In the fourth O site, O(4) is bonded in a linear geometry to two equivalent Ir(1) atoms.
IrO3 crystallizes in the orthorhombic Amm2 space group. Ir(1) is bonded to one O(1), one O(3), two equivalent O(2), and two equivalent O(4) atoms to form corner-sharing IrO6 octahedra. The corner-sharing octahedral tilt angles range from 2-44°. The Ir(1)-O(1) bond length is 1.91 Å. The Ir(1)-O(3) bond length is 1.94 Å. There is one shorter (1.89 Å) and one longer (1.97 Å) Ir(1)-O(2) bond length. Both Ir(1)-O(4) bond lengths are 1.86 Å. There are four inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to two equivalent Ir(1) atoms. In the second O site, O(2) is bonded in a bent 150 degrees geometry to two equivalent Ir(1) atoms. In the third O site, O(3) is bonded in a bent 150 degrees geometry to two equivalent Ir(1) atoms. In the fourth O site, O(4) is bonded in a linear geometry to two equivalent Ir(1) atoms.