W3AlO8 is Hydrophilite-derived structured and crystallizes in the triclinic P-1 space group. There are three 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(5), and one O(6) atom to form WO6 octahedra that share corners with four equivalent W(2)O6 octahedra, corners with four equivalent W(3)O6 octahedra, and edges with two equivalent Al(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 45-58°. In the second W site, W(2) is bonded to one O(2), one O(6), two equivalent O(3), and two equivalent O(8) atoms to form WO6 octahedra that share corners with four equivalent W(1)O6 octahedra, corners with four equivalent Al(1)O6 octahedra, and edges with two equivalent W(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 48-58°. In the third W site, W(3) is bonded to one O(1), one O(5), two equivalent O(4), and two equivalent O(7) atoms to form WO6 octahedra that share corners with four equivalent W(1)O6 octahedra, corners with four equivalent Al(1)O6 octahedra, and edges with two equivalent W(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 45-58°. Al(1) is bonded to one O(1), one O(2), one O(5), one O(6), one O(7), and one O(8) atom to form AlO6 octahedra that share corners with four equivalent W(2)O6 octahedra, corners with four equivalent W(3)O6 octahedra, and edges with two equivalent W(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 46-52°. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to one W(1), one W(3), and one Al(1) atom. In the second O site, O(2) is bonded in a trigonal planar geometry to one W(1), one W(2), and one Al(1) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to one W(1) and two equivalent W(2) atoms. In the fourth O site, O(4) is bonded in a distorted trigonal planar geometry to one W(1) and two equivalent W(3) atoms. In the fifth O site, O(5) is bonded in a distorted trigonal planar geometry to one W(1), one W(3), and one Al(1) atom. In the sixth O site, O(6) is bonded in a trigonal planar geometry to one W(1), one W(2), and one Al(1) atom. In the seventh O site, O(7) is bonded in a distorted trigonal planar geometry to two equivalent W(3) and one Al(1) atom. In the eighth O site, O(8) is bonded in a distorted trigonal planar geometry to two equivalent W(2) and one Al(1) atom.
W3AlO8 is Hydrophilite-derived structured and crystallizes in the triclinic P-1 space group. There are three 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(5), and one O(6) atom to form WO6 octahedra that share corners with four equivalent W(2)O6 octahedra, corners with four equivalent W(3)O6 octahedra, and edges with two equivalent Al(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 45-58°. The W(1)-O(1) bond length is 2.09 Å. The W(1)-O(2) bond length is 2.00 Å. The W(1)-O(3) bond length is 2.02 Å. The W(1)-O(4) bond length is 1.94 Å. The W(1)-O(5) bond length is 2.03 Å. The W(1)-O(6) bond length is 2.00 Å. In the second W site, W(2) is bonded to one O(2), one O(6), two equivalent O(3), and two equivalent O(8) atoms to form WO6 octahedra that share corners with four equivalent W(1)O6 octahedra, corners with four equivalent Al(1)O6 octahedra, and edges with two equivalent W(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 48-58°. The W(2)-O(2) bond length is 2.07 Å. The W(2)-O(6) bond length is 2.08 Å. There is one shorter (2.09 Å) and one longer (2.12 Å) W(2)-O(3) bond length. There is one shorter (2.04 Å) and one longer (2.14 Å) W(2)-O(8) bond length. In the third W site, W(3) is bonded to one O(1), one O(5), two equivalent O(4), and two equivalent O(7) atoms to form WO6 octahedra that share corners with four equivalent W(1)O6 octahedra, corners with four equivalent Al(1)O6 octahedra, and edges with two equivalent W(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 45-58°. The W(3)-O(1) bond length is 2.02 Å. The W(3)-O(5) bond length is 2.06 Å. There is one shorter (2.15 Å) and one longer (2.16 Å) W(3)-O(4) bond length. There is one shorter (2.05 Å) and one longer (2.12 Å) W(3)-O(7) bond length. Al(1) is bonded to one O(1), one O(2), one O(5), one O(6), one O(7), and one O(8) atom to form AlO6 octahedra that share corners with four equivalent W(2)O6 octahedra, corners with four equivalent W(3)O6 octahedra, and edges with two equivalent W(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 46-52°. The Al(1)-O(1) bond length is 1.98 Å. The Al(1)-O(2) bond length is 2.02 Å. The Al(1)-O(5) bond length is 1.95 Å. The Al(1)-O(6) bond length is 1.98 Å. The Al(1)-O(7) bond length is 1.90 Å. The Al(1)-O(8) bond length is 1.90 Å. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to one W(1), one W(3), and one Al(1) atom. In the second O site, O(2) is bonded in a trigonal planar geometry to one W(1), one W(2), and one Al(1) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to one W(1) and two equivalent W(2) atoms. In the fourth O site, O(4) is bonded in a distorted trigonal planar geometry to one W(1) and two equivalent W(3) atoms. In the fifth O site, O(5) is bonded in a distorted trigonal planar geometry to one W(1), one W(3), and one Al(1) atom. In the sixth O site, O(6) is bonded in a trigonal planar geometry to one W(1), one W(2), and one Al(1) atom. In the seventh O site, O(7) is bonded in a distorted trigonal planar geometry to two equivalent W(3) and one Al(1) atom. In the eighth O site, O(8) is bonded in a distorted trigonal planar geometry to two equivalent W(2) and one Al(1) atom.