K2IrCOBr5 crystallizes in the orthorhombic Pnma space group. K(1) is bonded in a 8-coordinate geometry to two equivalent Br(1), two equivalent Br(2), two equivalent Br(3), and two equivalent Br(4) atoms. Ir(1) is bonded in an octahedral geometry to one O(1), one Br(2), one Br(3), one Br(4), and two equivalent Br(1) atoms. C(1) is bonded in a single-bond geometry to one O(1) atom. O(1) is bonded in a linear geometry to one Ir(1) and one C(1) atom. There are four inequivalent Br sites. In the first Br site, Br(1) is bonded in a 3-coordinate geometry to two equivalent K(1) and one Ir(1) atom. In the second Br site, Br(2) is bonded in a 5-coordinate geometry to four equivalent K(1) and one Ir(1) atom. In the third Br site, Br(3) is bonded in a 5-coordinate geometry to four equivalent K(1) and one Ir(1) atom. In the fourth Br site, Br(4) is bonded to four equivalent K(1) and one Ir(1) atom to form distorted corner-sharing BrK4Ir square pyramids.
K2IrCOBr5 crystallizes in the orthorhombic Pnma space group. K(1) is bonded in a 8-coordinate geometry to two equivalent Br(1), two equivalent Br(2), two equivalent Br(3), and two equivalent Br(4) atoms. There is one shorter (3.42 Å) and one longer (3.47 Å) K(1)-Br(1) bond length. There is one shorter (3.53 Å) and one longer (3.69 Å) K(1)-Br(2) bond length. There is one shorter (3.57 Å) and one longer (3.88 Å) K(1)-Br(3) bond length. Both K(1)-Br(4) bond lengths are 3.58 Å. Ir(1) is bonded in an octahedral geometry to one O(1), one Br(2), one Br(3), one Br(4), and two equivalent Br(1) atoms. The Ir(1)-O(1) bond length is 2.09 Å. The Ir(1)-Br(2) bond length is 2.52 Å. The Ir(1)-Br(3) bond length is 2.53 Å. The Ir(1)-Br(4) bond length is 2.43 Å. Both Ir(1)-Br(1) bond lengths are 2.52 Å. C(1) is bonded in a single-bond geometry to one O(1) atom. The C(1)-O(1) bond length is 1.16 Å. O(1) is bonded in a linear geometry to one Ir(1) and one C(1) atom. There are four inequivalent Br sites. In the first Br site, Br(1) is bonded in a 3-coordinate geometry to two equivalent K(1) and one Ir(1) atom. In the second Br site, Br(2) is bonded in a 5-coordinate geometry to four equivalent K(1) and one Ir(1) atom. In the third Br site, Br(3) is bonded in a 5-coordinate geometry to four equivalent K(1) and one Ir(1) atom. In the fourth Br site, Br(4) is bonded to four equivalent K(1) and one Ir(1) atom to form distorted corner-sharing BrK4Ir square pyramids.