Gd2WO6 crystallizes in the orthorhombic P2_12_12_1 space group. There are two inequivalent Gd sites. In the first Gd site, Gd(1) is bonded in a 7-coordinate geometry to one O(1), one O(2), one O(3), one O(4), one O(5), and two equivalent O(6) atoms. In the second Gd site, Gd(2) is bonded to one O(3), one O(4), one O(5), two equivalent O(1), and two equivalent O(2) atoms to form distorted GdO7 hexagonal pyramids that share corners with three equivalent W(1)O6 octahedra, edges with two equivalent Gd(2)O7 hexagonal pyramids, and edges with two equivalent W(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 37-46°. W(1) is bonded to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(6) atom to form WO6 octahedra that share corners with three equivalent Gd(2)O7 hexagonal pyramids and edges with two equivalent Gd(2)O7 hexagonal pyramids. There are six inequivalent O sites. In the first O site, O(6) is bonded in a trigonal non-coplanar geometry to two equivalent Gd(1) and one W(1) atom. In the second O site, O(1) is bonded to one Gd(1), two equivalent Gd(2), and one W(1) atom to form a mixture of corner and edge-sharing OGd3W tetrahedra. In the third O site, O(2) is bonded to one Gd(1), two equivalent Gd(2), and one W(1) atom to form a mixture of distorted corner and edge-sharing OGd3W tetrahedra. In the fourth O site, O(3) is bonded in a 3-coordinate geometry to one Gd(1), one Gd(2), and one W(1) atom. In the fifth O site, O(4) is bonded in a distorted trigonal non-coplanar geometry to one Gd(1), one Gd(2), and one W(1) atom. In the sixth O site, O(5) is bonded in a distorted trigonal non-coplanar geometry to one Gd(1), one Gd(2), and one W(1) atom.
Gd2WO6 crystallizes in the orthorhombic P2_12_12_1 space group. There are two inequivalent Gd sites. In the first Gd site, Gd(1) is bonded in a 7-coordinate geometry to one O(1), one O(2), one O(3), one O(4), one O(5), and two equivalent O(6) atoms. The Gd(1)-O(1) bond length is 2.32 Å. The Gd(1)-O(2) bond length is 2.60 Å. The Gd(1)-O(3) bond length is 2.44 Å. The Gd(1)-O(4) bond length is 2.34 Å. The Gd(1)-O(5) bond length is 2.35 Å. There is one shorter (2.26 Å) and one longer (2.28 Å) Gd(1)-O(6) bond length. In the second Gd site, Gd(2) is bonded to one O(3), one O(4), one O(5), two equivalent O(1), and two equivalent O(2) atoms to form distorted GdO7 hexagonal pyramids that share corners with three equivalent W(1)O6 octahedra, edges with two equivalent Gd(2)O7 hexagonal pyramids, and edges with two equivalent W(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 37-46°. The Gd(2)-O(3) bond length is 2.36 Å. The Gd(2)-O(4) bond length is 2.36 Å. The Gd(2)-O(5) bond length is 2.33 Å. There is one shorter (2.36 Å) and one longer (2.42 Å) Gd(2)-O(1) bond length. There is one shorter (2.33 Å) and one longer (2.42 Å) Gd(2)-O(2) bond length. W(1) is bonded to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(6) atom to form WO6 octahedra that share corners with three equivalent Gd(2)O7 hexagonal pyramids and edges with two equivalent Gd(2)O7 hexagonal pyramids. The W(1)-O(1) bond length is 2.01 Å. The W(1)-O(2) bond length is 1.96 Å. The W(1)-O(3) bond length is 1.91 Å. The W(1)-O(4) bond length is 1.89 Å. The W(1)-O(5) bond length is 1.86 Å. The W(1)-O(6) bond length is 1.94 Å. There are six inequivalent O sites. In the first O site, O(6) is bonded in a trigonal non-coplanar geometry to two equivalent Gd(1) and one W(1) atom. In the second O site, O(1) is bonded to one Gd(1), two equivalent Gd(2), and one W(1) atom to form a mixture of corner and edge-sharing OGd3W tetrahedra. In the third O site, O(2) is bonded to one Gd(1), two equivalent Gd(2), and one W(1) atom to form a mixture of distorted corner and edge-sharing OGd3W tetrahedra. In the fourth O site, O(3) is bonded in a 3-coordinate geometry to one Gd(1), one Gd(2), and one W(1) atom. In the fifth O site, O(4) is bonded in a distorted trigonal non-coplanar geometry to one Gd(1), one Gd(2), and one W(1) atom. In the sixth O site, O(5) is bonded in a distorted trigonal non-coplanar geometry to one Gd(1), one Gd(2), and one W(1) atom.