MgIr2(WO6)2 crystallizes in the triclinic P1 space group. Mg(1) is bonded in a 8-coordinate geometry to one O(1), one O(10), one O(11), one O(4), one O(5), one O(6), one O(8), and one O(9) atom. There are two inequivalent W sites. In the first W site, W(1) is bonded to one O(1), one O(10), one O(12), one O(2), one O(4), and one O(9) atom to form WO6 octahedra that share corners with two equivalent Ir(1)O6 octahedra and corners with four equivalent Ir(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 27-41°. In the second W site, W(2) is bonded to one O(11), one O(3), one O(5), one O(6), one O(7), and one O(8) atom to form WO6 octahedra that share corners with two equivalent Ir(2)O6 octahedra and corners with four equivalent Ir(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 29-42°. There are two inequivalent Ir sites. In the first Ir site, Ir(1) is bonded to one O(1), one O(11), one O(12), one O(3), one O(5), and one O(8) atom to form IrO6 octahedra that share corners with two equivalent W(1)O6 octahedra and corners with four equivalent W(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 29-42°. In the second Ir site, Ir(2) is bonded to one O(10), one O(2), one O(4), one O(6), one O(7), and one O(9) atom to form IrO6 octahedra that share corners with two equivalent W(2)O6 octahedra and corners with four equivalent W(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 27-41°. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal non-coplanar geometry to one Mg(1), one W(1), and one Ir(1) atom. In the second O site, O(2) is bonded in a bent 150 degrees geometry to one W(1) and one Ir(2) atom. In the third O site, O(3) is bonded in a bent 150 degrees geometry to one W(2) and one Ir(1) atom. In the fourth O site, O(4) is bonded in a distorted bent 150 degrees geometry to one Mg(1), one W(1), and one Ir(2) atom. In the fifth O site, O(5) is bonded in a distorted T-shaped geometry to one Mg(1), one W(2), and one Ir(1) atom. In the sixth O site, O(6) is bonded in a T-shaped geometry to one Mg(1), one W(2), and one Ir(2) atom. In the seventh O site, O(7) is bonded in a bent 150 degrees geometry to one W(2) and one Ir(2) atom. In the eighth O site, O(8) is bonded in a distorted trigonal planar geometry to one Mg(1), one W(2), and one Ir(1) atom. In the ninth O site, O(9) is bonded in a distorted trigonal planar geometry to one Mg(1), one W(1), and one Ir(2) atom. In the tenth O site, O(10) is bonded in a T-shaped geometry to one Mg(1), one W(1), and one Ir(2) atom. In the eleventh O site, O(11) is bonded in a T-shaped geometry to one Mg(1), one W(2), and one Ir(1) atom. In the twelfth O site, O(12) is bonded in a bent 150 degrees geometry to one W(1) and one Ir(1) atom.
MgIr2(WO6)2 crystallizes in the triclinic P1 space group. Mg(1) is bonded in a 8-coordinate geometry to one O(1), one O(10), one O(11), one O(4), one O(5), one O(6), one O(8), and one O(9) atom. The Mg(1)-O(1) bond length is 2.07 Å. The Mg(1)-O(10) bond length is 2.29 Å. The Mg(1)-O(11) bond length is 2.43 Å. The Mg(1)-O(4) bond length is 2.58 Å. The Mg(1)-O(5) bond length is 2.59 Å. The Mg(1)-O(6) bond length is 2.22 Å. The Mg(1)-O(8) bond length is 2.11 Å. The Mg(1)-O(9) bond length is 2.12 Å. There are two inequivalent W sites. In the first W site, W(1) is bonded to one O(1), one O(10), one O(12), one O(2), one O(4), and one O(9) atom to form WO6 octahedra that share corners with two equivalent Ir(1)O6 octahedra and corners with four equivalent Ir(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 27-41°. The W(1)-O(1) bond length is 2.07 Å. The W(1)-O(10) bond length is 1.95 Å. The W(1)-O(12) bond length is 1.86 Å. The W(1)-O(2) bond length is 1.89 Å. The W(1)-O(4) bond length is 1.91 Å. The W(1)-O(9) bond length is 1.99 Å. In the second W site, W(2) is bonded to one O(11), one O(3), one O(5), one O(6), one O(7), and one O(8) atom to form WO6 octahedra that share corners with two equivalent Ir(2)O6 octahedra and corners with four equivalent Ir(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 29-42°. The W(2)-O(11) bond length is 1.96 Å. The W(2)-O(3) bond length is 1.91 Å. The W(2)-O(5) bond length is 1.92 Å. The W(2)-O(6) bond length is 2.01 Å. The W(2)-O(7) bond length is 1.88 Å. The W(2)-O(8) bond length is 1.98 Å. There are two inequivalent Ir sites. In the first Ir site, Ir(1) is bonded to one O(1), one O(11), one O(12), one O(3), one O(5), and one O(8) atom to form IrO6 octahedra that share corners with two equivalent W(1)O6 octahedra and corners with four equivalent W(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 29-42°. The Ir(1)-O(1) bond length is 1.97 Å. The Ir(1)-O(11) bond length is 1.94 Å. The Ir(1)-O(12) bond length is 1.95 Å. The Ir(1)-O(3) bond length is 1.92 Å. The Ir(1)-O(5) bond length is 1.95 Å. The Ir(1)-O(8) bond length is 2.00 Å. In the second Ir site, Ir(2) is bonded to one O(10), one O(2), one O(4), one O(6), one O(7), and one O(9) atom to form IrO6 octahedra that share corners with two equivalent W(2)O6 octahedra and corners with four equivalent W(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 27-41°. The Ir(2)-O(10) bond length is 1.97 Å. The Ir(2)-O(2) bond length is 1.93 Å. The Ir(2)-O(4) bond length is 1.95 Å. The Ir(2)-O(6) bond length is 1.94 Å. The Ir(2)-O(7) bond length is 1.95 Å. The Ir(2)-O(9) bond length is 1.98 Å. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal non-coplanar geometry to one Mg(1), one W(1), and one Ir(1) atom. In the second O site, O(2) is bonded in a bent 150 degrees geometry to one W(1) and one Ir(2) atom. In the third O site, O(3) is bonded in a bent 150 degrees geometry to one W(2) and one Ir(1) atom. In the fourth O site, O(4) is bonded in a distorted bent 150 degrees geometry to one Mg(1), one W(1), and one Ir(2) atom. In the fifth O site, O(5) is bonded in a distorted T-shaped geometry to one Mg(1), one W(2), and one Ir(1) atom. In the sixth O site, O(6) is bonded in a T-shaped geometry to one Mg(1), one W(2), and one Ir(2) atom. In the seventh O site, O(7) is bonded in a bent 150 degrees geometry to one W(2) and one Ir(2) atom. In the eighth O site, O(8) is bonded in a distorted trigonal planar geometry to one Mg(1), one W(2), and one Ir(1) atom. In the ninth O site, O(9) is bonded in a distorted trigonal planar geometry to one Mg(1), one W(1), and one Ir(2) atom. In the tenth O site, O(10) is bonded in a T-shaped geometry to one Mg(1), one W(1), and one Ir(2) atom. In the eleventh O site, O(11) is bonded in a T-shaped geometry to one Mg(1), one W(2), and one Ir(1) atom. In the twelfth O site, O(12) is bonded in a bent 150 degrees geometry to one W(1) and one Ir(1) atom.