YTa(WO4)2 crystallizes in the triclinic P1 space group. 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 distorted YO6 octahedra that share corners with four equivalent Ta(1)O6 octahedra, 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 42-64°. Ta(1) is bonded to one O(2), one O(3), one O(4), one O(5), one O(7), and one O(8) atom to form TaO6 octahedra that share  a cornercorner with one W(1)O6 octahedra,  a cornercorner with one W(2)O6 octahedra, corners with four equivalent Y(1)O6 octahedra, edges with two equivalent W(1)O6 octahedra, and edges with two equivalent W(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 25-62°. 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  a cornercorner with one Ta(1)O6 octahedra, corners with four equivalent Y(1)O6 octahedra, edges with two equivalent Ta(1)O6 octahedra, and edges with two equivalent W(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 25-64°. 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  a cornercorner with one Ta(1)O6 octahedra, corners with four equivalent Y(1)O6 octahedra, edges with two equivalent Ta(1)O6 octahedra, and edges with two equivalent W(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 31-61°. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a 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 trigonal planar geometry to one Y(1), one Ta(1), and one W(1) atom. In the third O site, O(3) is bonded in a distorted trigonal non-coplanar geometry to one Ta(1), one W(1), and one W(2) atom. In the fourth O site, O(4) is bonded in a distorted rectangular see-saw-like geometry to one Y(1), one Ta(1), one W(1), and one W(2) atom. In the fifth O site, O(5) is bonded in a distorted trigonal planar geometry to one Y(1), one Ta(1), and one W(2) atom. In the sixth O site, O(6) is bonded in a bent 150 degrees geometry to one Y(1) and one W(2) atom. In the seventh O site, O(7) is bonded in a distorted T-shaped geometry to one Ta(1), one W(1), and one W(2) atom. In the eighth O site, O(8) is bonded in a distorted rectangular see-saw-like geometry to one Y(1), one Ta(1), one W(1), and one W(2) atom.
YTa(WO4)2 crystallizes in the triclinic P1 space group. 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 distorted YO6 octahedra that share corners with four equivalent Ta(1)O6 octahedra, 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 42-64°. The Y(1)-O(1) bond length is 2.15 Å. The Y(1)-O(2) bond length is 2.39 Å. The Y(1)-O(4) bond length is 2.70 Å. The Y(1)-O(5) bond length is 2.43 Å. The Y(1)-O(6) bond length is 2.12 Å. The Y(1)-O(8) bond length is 2.39 Å. Ta(1) is bonded to one O(2), one O(3), one O(4), one O(5), one O(7), and one O(8) atom to form TaO6 octahedra that share  a cornercorner with one W(1)O6 octahedra,  a cornercorner with one W(2)O6 octahedra, corners with four equivalent Y(1)O6 octahedra, edges with two equivalent W(1)O6 octahedra, and edges with two equivalent W(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 25-62°. The Ta(1)-O(2) bond length is 2.04 Å. The Ta(1)-O(3) bond length is 1.99 Å. The Ta(1)-O(4) bond length is 1.99 Å. The Ta(1)-O(5) bond length is 2.00 Å. The Ta(1)-O(7) bond length is 2.00 Å. The Ta(1)-O(8) bond length is 2.17 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  a cornercorner with one Ta(1)O6 octahedra, corners with four equivalent Y(1)O6 octahedra, edges with two equivalent Ta(1)O6 octahedra, and edges with two equivalent W(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 25-64°. The W(1)-O(1) bond length is 1.88 Å. The W(1)-O(2) bond length is 2.05 Å. The W(1)-O(3) bond length is 2.10 Å. The W(1)-O(4) bond length is 2.35 Å. The W(1)-O(7) bond length is 2.15 Å. The W(1)-O(8) bond length is 2.23 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  a cornercorner with one Ta(1)O6 octahedra, corners with four equivalent Y(1)O6 octahedra, edges with two equivalent Ta(1)O6 octahedra, and edges with two equivalent W(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 31-61°. The W(2)-O(3) bond length is 2.12 Å. The W(2)-O(4) bond length is 2.25 Å. The W(2)-O(5) bond length is 2.06 Å. The W(2)-O(6) bond length is 1.88 Å. The W(2)-O(7) bond length is 2.12 Å. The W(2)-O(8) bond length is 2.27 Å. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a 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 trigonal planar geometry to one Y(1), one Ta(1), and one W(1) atom. In the third O site, O(3) is bonded in a distorted trigonal non-coplanar geometry to one Ta(1), one W(1), and one W(2) atom. In the fourth O site, O(4) is bonded in a distorted rectangular see-saw-like geometry to one Y(1), one Ta(1), one W(1), and one W(2) atom. In the fifth O site, O(5) is bonded in a distorted trigonal planar geometry to one Y(1), one Ta(1), and one W(2) atom. In the sixth O site, O(6) is bonded in a bent 150 degrees geometry to one Y(1) and one W(2) atom. In the seventh O site, O(7) is bonded in a distorted T-shaped geometry to one Ta(1), one W(1), and one W(2) atom. In the eighth O site, O(8) is bonded in a distorted rectangular see-saw-like geometry to one Y(1), one Ta(1), one W(1), and one W(2) atom.