MgYAg(WO4)2 crystallizes in the triclinic P1 space group. Mg(1) is bonded in a 6-coordinate geometry to one O(2), one O(3), one O(4), one O(5), one O(7), and one O(8) atom. Y(1) is bonded to one O(1), one O(2), one O(4), one O(5), one O(6), and one O(8) atom to form YO6 octahedra that share corners with four equivalent W(1)O6 octahedra and corners with four equivalent W(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 33-58°. There are two inequivalent W sites. In the first W site, W(1) is bonded to one O(1), one O(2), one O(3), one O(4), one O(7), and one O(8) atom to form distorted WO6 octahedra that share corners with four equivalent Y(1)O6 octahedra and edges with two equivalent W(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 33-58°. In the second W site, W(2) is bonded to one O(3), one O(4), one O(5), one O(6), one O(7), and one O(8) atom to form distorted WO6 octahedra that share corners with four equivalent Y(1)O6 octahedra and edges with two equivalent W(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 33-58°. Ag(1) is bonded in a distorted linear geometry to one O(3) and one O(7) atom. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 120 degrees geometry to one Y(1) and one W(1) atom. In the second O site, O(2) is bonded in a distorted T-shaped geometry to one Mg(1), one Y(1), and one W(1) atom. In the third O site, O(3) is bonded in a distorted see-saw-like geometry to one Mg(1), one W(1), one W(2), and one Ag(1) atom. In the fourth O site, O(4) is bonded in a 4-coordinate geometry to one Mg(1), one Y(1), one W(1), and one W(2) atom. In the fifth O site, O(5) is bonded in a distorted T-shaped geometry to one Mg(1), one Y(1), and one W(2) atom. In the sixth O site, O(6) is bonded in a distorted bent 120 degrees geometry to one Y(1) and one W(2) atom. In the seventh O site, O(7) is bonded in a distorted rectangular see-saw-like geometry to one Mg(1), one W(1), one W(2), and one Ag(1) atom. In the eighth O site, O(8) is bonded in a 4-coordinate geometry to one Mg(1), one Y(1), one W(1), and one W(2) atom.
MgYAg(WO4)2 crystallizes in the triclinic P1 space group. Mg(1) is bonded in a 6-coordinate geometry to one O(2), one O(3), one O(4), one O(5), one O(7), and one O(8) atom. The Mg(1)-O(2) bond length is 1.96 Å. The Mg(1)-O(3) bond length is 2.20 Å. The Mg(1)-O(4) bond length is 2.40 Å. The Mg(1)-O(5) bond length is 1.96 Å. The Mg(1)-O(7) bond length is 2.18 Å. The Mg(1)-O(8) bond length is 2.35 Å. Y(1) is bonded to one O(1), one O(2), one O(4), one O(5), one O(6), and one O(8) atom to form YO6 octahedra that share corners with four equivalent W(1)O6 octahedra and corners with four equivalent W(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 33-58°. The Y(1)-O(1) bond length is 2.28 Å. The Y(1)-O(2) bond length is 2.30 Å. The Y(1)-O(4) bond length is 2.47 Å. The Y(1)-O(5) bond length is 2.29 Å. The Y(1)-O(6) bond length is 2.29 Å. The Y(1)-O(8) bond length is 2.48 Å. There are two inequivalent W sites. In the first W site, W(1) is bonded to one O(1), one O(2), one O(3), one O(4), one O(7), and one O(8) atom to form distorted WO6 octahedra that share corners with four equivalent Y(1)O6 octahedra and edges with two equivalent W(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 33-58°. The W(1)-O(1) bond length is 1.81 Å. The W(1)-O(2) bond length is 2.03 Å. The W(1)-O(3) bond length is 2.14 Å. The W(1)-O(4) bond length is 2.21 Å. The W(1)-O(7) bond length is 2.01 Å. The W(1)-O(8) bond length is 2.14 Å. In the second W site, W(2) is bonded to one O(3), one O(4), one O(5), one O(6), one O(7), and one O(8) atom to form distorted WO6 octahedra that share corners with four equivalent Y(1)O6 octahedra and edges with two equivalent W(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 33-58°. The W(2)-O(3) bond length is 2.01 Å. The W(2)-O(4) bond length is 2.14 Å. The W(2)-O(5) bond length is 2.03 Å. The W(2)-O(6) bond length is 1.81 Å. The W(2)-O(7) bond length is 2.14 Å. The W(2)-O(8) bond length is 2.22 Å. Ag(1) is bonded in a distorted linear geometry to one O(3) and one O(7) atom. The Ag(1)-O(3) bond length is 2.08 Å. The Ag(1)-O(7) bond length is 2.08 Å. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 120 degrees geometry to one Y(1) and one W(1) atom. In the second O site, O(2) is bonded in a distorted T-shaped geometry to one Mg(1), one Y(1), and one W(1) atom. In the third O site, O(3) is bonded in a distorted see-saw-like geometry to one Mg(1), one W(1), one W(2), and one Ag(1) atom. In the fourth O site, O(4) is bonded in a 4-coordinate geometry to one Mg(1), one Y(1), one W(1), and one W(2) atom. In the fifth O site, O(5) is bonded in a distorted T-shaped geometry to one Mg(1), one Y(1), and one W(2) atom. In the sixth O site, O(6) is bonded in a distorted bent 120 degrees geometry to one Y(1) and one W(2) atom. In the seventh O site, O(7) is bonded in a distorted rectangular see-saw-like geometry to one Mg(1), one W(1), one W(2), and one Ag(1) atom. In the eighth O site, O(8) is bonded in a 4-coordinate geometry to one Mg(1), one Y(1), one W(1), and one W(2) atom.