Ba3Tb2WO9 crystallizes in the triclinic P-1 space group. There are three inequivalent Ba sites. In the first Ba site, Ba(1) is bonded in a 12-coordinate geometry to one O(1), one O(2), one O(5), one O(6), one O(8), two equivalent O(3), two equivalent O(4), and three equivalent O(7) atoms. In the second Ba site, Ba(2) is bonded in a 12-coordinate geometry to one O(1), one O(2), one O(5), one O(6), one O(8), two equivalent O(3), two equivalent O(4), and three equivalent O(9) atoms. In the third Ba site, Ba(3) is bonded in a 12-coordinate geometry to one O(7), one O(9), two equivalent O(1), two equivalent O(2), two equivalent O(5), two equivalent O(6), and two equivalent O(8) atoms. There are three inequivalent Tb sites. In the first Tb site, Tb(1) is bonded to one O(1), one O(3), one O(4), one O(6), one O(7), and one O(9) atom to form TbO6 octahedra that share corners with two equivalent Tb(3)O6 octahedra and corners with four equivalent W(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 11-21°. In the second Tb site, Tb(2) is bonded to two equivalent O(2), two equivalent O(5), and two equivalent O(8) atoms to form TbO6 octahedra that share corners with two equivalent Tb(3)O6 octahedra and corners with four equivalent W(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 11-20°. In the third Tb site, Tb(3) is bonded to two equivalent O(1), two equivalent O(6), and two equivalent O(8) atoms to form corner-sharing TbO6 octahedra. The corner-sharing octahedral tilt angles range from 20-21°. W(1) is bonded to one O(2), one O(3), one O(4), one O(5), one O(7), and one O(9) atom to form WO6 octahedra that share corners with two equivalent Tb(2)O6 octahedra and corners with four equivalent Tb(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 11-18°. There are nine inequivalent O sites. In the first O site, O(1) is bonded in a 5-coordinate geometry to one Ba(1), one Ba(2), two equivalent Ba(3), one Tb(1), and one Tb(3) atom. In the second O site, O(2) is bonded in a 2-coordinate geometry to one Ba(1), one Ba(2), two equivalent Ba(3), one Tb(2), and one W(1) atom. In the third O site, O(3) is bonded in a 2-coordinate geometry to two equivalent Ba(1), two equivalent Ba(2), one Tb(1), and one W(1) atom. In the fourth O site, O(4) is bonded in a 2-coordinate geometry to two equivalent Ba(1), two equivalent Ba(2), one Tb(1), and one W(1) atom. In the fifth O site, O(5) is bonded in a 2-coordinate geometry to one Ba(1), one Ba(2), two equivalent Ba(3), one Tb(2), and one W(1) atom. In the sixth O site, O(6) is bonded in a 4-coordinate geometry to one Ba(1), one Ba(2), two equivalent Ba(3), one Tb(1), and one Tb(3) atom. In the seventh O site, O(7) is bonded in a 6-coordinate geometry to one Ba(3), three equivalent Ba(1), one Tb(1), and one W(1) atom. In the eighth O site, O(8) is bonded in a 4-coordinate geometry to one Ba(1), one Ba(2), two equivalent Ba(3), one Tb(2), and one Tb(3) atom. In the ninth O site, O(9) is bonded in a 2-coordinate geometry to one Ba(3), three equivalent Ba(2), one Tb(1), and one W(1) atom.
Ba3Tb2WO9 crystallizes in the triclinic P-1 space group. There are three inequivalent Ba sites. In the first Ba site, Ba(1) is bonded in a 12-coordinate geometry to one O(1), one O(2), one O(5), one O(6), one O(8), two equivalent O(3), two equivalent O(4), and three equivalent O(7) atoms. The Ba(1)-O(1) bond length is 3.40 Å. The Ba(1)-O(2) bond length is 3.15 Å. The Ba(1)-O(5) bond length is 3.22 Å. The Ba(1)-O(6) bond length is 2.73 Å. The Ba(1)-O(8) bond length is 2.76 Å. There is one shorter (2.80 Å) and one longer (3.18 Å) Ba(1)-O(3) bond length. There is one shorter (2.93 Å) and one longer (3.23 Å) Ba(1)-O(4) bond length. There are a spread of Ba(1)-O(7) bond distances ranging from 2.91-3.25 Å. In the second Ba site, Ba(2) is bonded in a 12-coordinate geometry to one O(1), one O(2), one O(5), one O(6), one O(8), two equivalent O(3), two equivalent O(4), and three equivalent O(9) atoms. The Ba(2)-O(1) bond length is 2.94 Å. The Ba(2)-O(2) bond length is 2.81 Å. The Ba(2)-O(5) bond length is 3.24 Å. The Ba(2)-O(6) bond length is 2.72 Å. The Ba(2)-O(8) bond length is 3.26 Å. There is one shorter (3.11 Å) and one longer (3.42 Å) Ba(2)-O(3) bond length. There is one shorter (2.93 Å) and one longer (3.28 Å) Ba(2)-O(4) bond length. There are a spread of Ba(2)-O(9) bond distances ranging from 2.92-3.21 Å. In the third Ba site, Ba(3) is bonded in a 12-coordinate geometry to one O(7), one O(9), two equivalent O(1), two equivalent O(2), two equivalent O(5), two equivalent O(6), and two equivalent O(8) atoms. The Ba(3)-O(7) bond length is 2.95 Å. The Ba(3)-O(9) bond length is 3.27 Å. There is one shorter (2.68 Å) and one longer (3.06 Å) Ba(3)-O(1) bond length. There is one shorter (3.06 Å) and one longer (3.36 Å) Ba(3)-O(2) bond length. There is one shorter (2.92 Å) and one longer (2.99 Å) Ba(3)-O(5) bond length. There is one shorter (3.29 Å) and one longer (3.37 Å) Ba(3)-O(6) bond length. There is one shorter (2.70 Å) and one longer (3.44 Å) Ba(3)-O(8) bond length. There are three inequivalent Tb sites. In the first Tb site, Tb(1) is bonded to one O(1), one O(3), one O(4), one O(6), one O(7), and one O(9) atom to form TbO6 octahedra that share corners with two equivalent Tb(3)O6 octahedra and corners with four equivalent W(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 11-21°. The Tb(1)-O(1) bond length is 2.15 Å. The Tb(1)-O(3) bond length is 2.38 Å. The Tb(1)-O(4) bond length is 2.38 Å. The Tb(1)-O(6) bond length is 2.15 Å. The Tb(1)-O(7) bond length is 2.37 Å. The Tb(1)-O(9) bond length is 2.38 Å. In the second Tb site, Tb(2) is bonded to two equivalent O(2), two equivalent O(5), and two equivalent O(8) atoms to form TbO6 octahedra that share corners with two equivalent Tb(3)O6 octahedra and corners with four equivalent W(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 11-20°. Both Tb(2)-O(2) bond lengths are 2.37 Å. Both Tb(2)-O(5) bond lengths are 2.35 Å. Both Tb(2)-O(8) bond lengths are 2.17 Å. In the third Tb site, Tb(3) is bonded to two equivalent O(1), two equivalent O(6), and two equivalent O(8) atoms to form corner-sharing TbO6 octahedra. The corner-sharing octahedral tilt angles range from 20-21°. Both Tb(3)-O(1) bond lengths are 2.28 Å. Both Tb(3)-O(6) bond lengths are 2.27 Å. Both Tb(3)-O(8) bond lengths are 2.23 Å. W(1) is bonded to one O(2), one O(3), one O(4), one O(5), one O(7), and one O(9) atom to form WO6 octahedra that share corners with two equivalent Tb(2)O6 octahedra and corners with four equivalent Tb(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 11-18°. The W(1)-O(2) bond length is 1.98 Å. The W(1)-O(3) bond length is 1.96 Å. The W(1)-O(4) bond length is 1.97 Å. The W(1)-O(5) bond length is 1.98 Å. The W(1)-O(7) bond length is 1.99 Å. The W(1)-O(9) bond length is 1.98 Å. There are nine inequivalent O sites. In the first O site, O(1) is bonded in a 5-coordinate geometry to one Ba(1), one Ba(2), two equivalent Ba(3), one Tb(1), and one Tb(3) atom. In the second O site, O(2) is bonded in a 2-coordinate geometry to one Ba(1), one Ba(2), two equivalent Ba(3), one Tb(2), and one W(1) atom. In the third O site, O(3) is bonded in a 2-coordinate geometry to two equivalent Ba(1), two equivalent Ba(2), one Tb(1), and one W(1) atom. In the fourth O site, O(4) is bonded in a 2-coordinate geometry to two equivalent Ba(1), two equivalent Ba(2), one Tb(1), and one W(1) atom. In the fifth O site, O(5) is bonded in a 2-coordinate geometry to one Ba(1), one Ba(2), two equivalent Ba(3), one Tb(2), and one W(1) atom. In the sixth O site, O(6) is bonded in a 4-coordinate geometry to one Ba(1), one Ba(2), two equivalent Ba(3), one Tb(1), and one Tb(3) atom. In the seventh O site, O(7) is bonded in a 6-coordinate geometry to one Ba(3), three equivalent Ba(1), one Tb(1), and one W(1) atom. In the eighth O site, O(8) is bonded in a 4-coordinate geometry to one Ba(1), one Ba(2), two equivalent Ba(3), one Tb(2), and one Tb(3) atom. In the ninth O site, O(9) is bonded in a 2-coordinate geometry to one Ba(3), three equivalent Ba(2), one Tb(1), and one W(1) atom.