MgLa2Fe2(WO6)2 crystallizes in the triclinic P1 space group. Mg(1) is bonded in a 6-coordinate geometry to one O(11), one O(12), one O(4), one O(5), one O(6), and one O(9) atom. There are two inequivalent La sites. In the first La site, La(1) is bonded in a 8-coordinate geometry to one O(10), one O(11), one O(12), one O(2), one O(3), one O(4), one O(5), and one O(6) atom. In the second La site, La(2) is bonded in a 8-coordinate geometry to one O(1), one O(2), one O(3), one O(4), one O(5), one O(7), 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(10), 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 Fe(1)O6 octahedra and corners with four equivalent Fe(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 23-39°. In the second W site, W(2) is bonded to one O(1), one O(11), one O(12), one O(2), one O(4), and one O(9) atom to form WO6 octahedra that share corners with two equivalent Fe(2)O6 octahedra and corners with four equivalent Fe(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 24-34°. There are two inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to one O(11), one O(2), one O(4), one O(6), one O(7), and one O(9) atom to form FeO6 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 24-36°. In the second Fe site, Fe(2) is bonded to one O(1), one O(10), one O(12), one O(3), one O(5), and one O(8) atom to form FeO6 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 23-39°. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a distorted T-shaped geometry to one La(2), one W(2), and one Fe(2) atom. In the second O site, O(2) is bonded in a 4-coordinate geometry to one La(1), one La(2), one W(2), and one Fe(1) atom. In the third O site, O(3) is bonded in a distorted rectangular see-saw-like geometry to one La(1), one La(2), one W(1), and one Fe(2) atom. In the fourth O site, O(4) is bonded in a 5-coordinate geometry to one Mg(1), one La(1), one La(2), one W(2), and one Fe(1) atom. In the fifth O site, O(5) is bonded in a 5-coordinate geometry to one Mg(1), one La(1), one La(2), one W(1), and one Fe(2) atom. In the sixth O site, O(6) is bonded in a 4-coordinate geometry to one Mg(1), one La(1), one W(1), and one Fe(1) atom. In the seventh O site, O(7) is bonded in a 3-coordinate geometry to one La(2), one W(1), and one Fe(1) atom. In the eighth O site, O(8) is bonded in a distorted trigonal non-coplanar geometry to one La(2), one W(1), and one Fe(2) atom. In the ninth O site, O(9) is bonded to one Mg(1), one La(2), one W(2), and one Fe(1) atom to form a mixture of distorted edge and corner-sharing OLaMgFeW trigonal pyramids. In the tenth O site, O(10) is bonded in a 3-coordinate geometry to one La(1), one W(1), and one Fe(2) atom. In the eleventh O site, O(11) is bonded to one Mg(1), one La(1), one W(2), and one Fe(1) atom to form a mixture of distorted edge and corner-sharing OLaMgFeW tetrahedra. In the twelfth O site, O(12) is bonded to one Mg(1), one La(1), one W(2), and one Fe(2) atom to form a mixture of distorted edge and corner-sharing OLaMgFeW tetrahedra.
MgLa2Fe2(WO6)2 crystallizes in the triclinic P1 space group. Mg(1) is bonded in a 6-coordinate geometry to one O(11), one O(12), one O(4), one O(5), one O(6), and one O(9) atom. The Mg(1)-O(11) bond length is 2.32 Å. The Mg(1)-O(12) bond length is 2.31 Å. The Mg(1)-O(4) bond length is 2.15 Å. The Mg(1)-O(5) bond length is 2.31 Å. The Mg(1)-O(6) bond length is 2.17 Å. The Mg(1)-O(9) bond length is 2.41 Å. There are two inequivalent La sites. In the first La site, La(1) is bonded in a 8-coordinate geometry to one O(10), one O(11), one O(12), one O(2), one O(3), one O(4), one O(5), and one O(6) atom. The La(1)-O(10) bond length is 2.41 Å. The La(1)-O(11) bond length is 2.46 Å. The La(1)-O(12) bond length is 2.40 Å. The La(1)-O(2) bond length is 2.60 Å. The La(1)-O(3) bond length is 2.73 Å. The La(1)-O(4) bond length is 2.57 Å. The La(1)-O(5) bond length is 2.63 Å. The La(1)-O(6) bond length is 2.62 Å. In the second La site, La(2) is bonded in a 8-coordinate geometry to one O(1), one O(2), one O(3), one O(4), one O(5), one O(7), one O(8), and one O(9) atom. The La(2)-O(1) bond length is 2.46 Å. The La(2)-O(2) bond length is 2.78 Å. The La(2)-O(3) bond length is 2.65 Å. The La(2)-O(4) bond length is 2.81 Å. The La(2)-O(5) bond length is 2.83 Å. The La(2)-O(7) bond length is 2.38 Å. The La(2)-O(8) bond length is 2.40 Å. The La(2)-O(9) bond length is 2.37 Å. There are two inequivalent W sites. In the first W site, W(1) is bonded to one O(10), 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 Fe(1)O6 octahedra and corners with four equivalent Fe(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 23-39°. The W(1)-O(10) bond length is 1.93 Å. The W(1)-O(3) bond length is 1.94 Å. The W(1)-O(5) bond length is 2.00 Å. The W(1)-O(6) bond length is 2.03 Å. The W(1)-O(7) bond length is 1.95 Å. The W(1)-O(8) bond length is 1.90 Å. In the second W site, W(2) is bonded to one O(1), one O(11), one O(12), one O(2), one O(4), and one O(9) atom to form WO6 octahedra that share corners with two equivalent Fe(2)O6 octahedra and corners with four equivalent Fe(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 24-34°. The W(2)-O(1) bond length is 1.88 Å. The W(2)-O(11) bond length is 2.06 Å. The W(2)-O(12) bond length is 1.99 Å. The W(2)-O(2) bond length is 2.01 Å. The W(2)-O(4) bond length is 2.11 Å. The W(2)-O(9) bond length is 2.04 Å. There are two inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to one O(11), one O(2), one O(4), one O(6), one O(7), and one O(9) atom to form FeO6 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 24-36°. The Fe(1)-O(11) bond length is 1.96 Å. The Fe(1)-O(2) bond length is 2.00 Å. The Fe(1)-O(4) bond length is 2.20 Å. The Fe(1)-O(6) bond length is 2.13 Å. The Fe(1)-O(7) bond length is 2.10 Å. The Fe(1)-O(9) bond length is 2.00 Å. In the second Fe site, Fe(2) is bonded to one O(1), one O(10), one O(12), one O(3), one O(5), and one O(8) atom to form FeO6 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 23-39°. The Fe(2)-O(1) bond length is 2.11 Å. The Fe(2)-O(10) bond length is 2.07 Å. The Fe(2)-O(12) bond length is 2.15 Å. The Fe(2)-O(3) bond length is 2.09 Å. The Fe(2)-O(5) bond length is 2.37 Å. The Fe(2)-O(8) bond length is 2.12 Å. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a distorted T-shaped geometry to one La(2), one W(2), and one Fe(2) atom. In the second O site, O(2) is bonded in a 4-coordinate geometry to one La(1), one La(2), one W(2), and one Fe(1) atom. In the third O site, O(3) is bonded in a distorted rectangular see-saw-like geometry to one La(1), one La(2), one W(1), and one Fe(2) atom. In the fourth O site, O(4) is bonded in a 5-coordinate geometry to one Mg(1), one La(1), one La(2), one W(2), and one Fe(1) atom. In the fifth O site, O(5) is bonded in a 5-coordinate geometry to one Mg(1), one La(1), one La(2), one W(1), and one Fe(2) atom. In the sixth O site, O(6) is bonded in a 4-coordinate geometry to one Mg(1), one La(1), one W(1), and one Fe(1) atom. In the seventh O site, O(7) is bonded in a 3-coordinate geometry to one La(2), one W(1), and one Fe(1) atom. In the eighth O site, O(8) is bonded in a distorted trigonal non-coplanar geometry to one La(2), one W(1), and one Fe(2) atom. In the ninth O site, O(9) is bonded to one Mg(1), one La(2), one W(2), and one Fe(1) atom to form a mixture of distorted edge and corner-sharing OLaMgFeW trigonal pyramids. In the tenth O site, O(10) is bonded in a 3-coordinate geometry to one La(1), one W(1), and one Fe(2) atom. In the eleventh O site, O(11) is bonded to one Mg(1), one La(1), one W(2), and one Fe(1) atom to form a mixture of distorted edge and corner-sharing OLaMgFeW tetrahedra. In the twelfth O site, O(12) is bonded to one Mg(1), one La(1), one W(2), and one Fe(2) atom to form a mixture of distorted edge and corner-sharing OLaMgFeW tetrahedra.