ReAl(WO4)2 crystallizes in the triclinic P1 space group. 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 pentagonal pyramids that share corners with three equivalent Al(1)O5 trigonal bipyramids and edges with two equivalent W(2)O6 octahedra. 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 Al(1)O5 trigonal bipyramids and edges with two equivalent W(1)O6 pentagonal pyramids. Re(1) is bonded in a rectangular see-saw-like geometry to one O(2), one O(3), one O(5), and one O(7) atom. Al(1) is bonded to one O(1), one O(4), one O(5), one O(6), and one O(8) atom to form AlO5 trigonal bipyramids that share corners with four equivalent W(2)O6 octahedra and corners with three equivalent W(1)O6 pentagonal pyramids. The corner-sharing octahedral tilt angles range from 36-50°. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 150 degrees geometry to one W(1) and one Al(1) atom. In the second O site, O(2) is bonded in a bent 120 degrees geometry to one W(1) and one Re(1) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to one W(1), one W(2), and one Re(1) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one W(1), one W(2), and one Al(1) atom. In the fifth O site, O(5) is bonded in a trigonal planar geometry to one W(2), one Re(1), and one Al(1) atom. In the sixth O site, O(6) is bonded in a distorted bent 120 degrees geometry to one W(2) and one Al(1) atom. In the seventh O site, O(7) is bonded in a distorted trigonal planar geometry to one W(1), one W(2), and one Re(1) atom. In the eighth O site, O(8) is bonded in a 3-coordinate geometry to one W(1), one W(2), and one Al(1) atom.
ReAl(WO4)2 crystallizes in the triclinic P1 space group. 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 pentagonal pyramids that share corners with three equivalent Al(1)O5 trigonal bipyramids and edges with two equivalent W(2)O6 octahedra. The W(1)-O(1) bond length is 1.88 Å. The W(1)-O(2) bond length is 1.93 Å. The W(1)-O(3) bond length is 2.12 Å. The W(1)-O(4) bond length is 2.10 Å. The W(1)-O(7) bond length is 2.04 Å. The W(1)-O(8) bond length is 2.07 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 Al(1)O5 trigonal bipyramids and edges with two equivalent W(1)O6 pentagonal pyramids. The W(2)-O(3) bond length is 2.00 Å. The W(2)-O(4) bond length is 2.12 Å. The W(2)-O(5) bond length is 2.08 Å. The W(2)-O(6) bond length is 1.86 Å. The W(2)-O(7) bond length is 2.11 Å. The W(2)-O(8) bond length is 2.12 Å. Re(1) is bonded in a rectangular see-saw-like geometry to one O(2), one O(3), one O(5), and one O(7) atom. The Re(1)-O(2) bond length is 1.99 Å. The Re(1)-O(3) bond length is 1.97 Å. The Re(1)-O(5) bond length is 2.12 Å. The Re(1)-O(7) bond length is 1.96 Å. Al(1) is bonded to one O(1), one O(4), one O(5), one O(6), and one O(8) atom to form AlO5 trigonal bipyramids that share corners with four equivalent W(2)O6 octahedra and corners with three equivalent W(1)O6 pentagonal pyramids. The corner-sharing octahedral tilt angles range from 36-50°. The Al(1)-O(1) bond length is 1.83 Å. The Al(1)-O(4) bond length is 1.99 Å. The Al(1)-O(5) bond length is 1.94 Å. The Al(1)-O(6) bond length is 1.90 Å. The Al(1)-O(8) bond length is 1.94 Å. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 150 degrees geometry to one W(1) and one Al(1) atom. In the second O site, O(2) is bonded in a bent 120 degrees geometry to one W(1) and one Re(1) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to one W(1), one W(2), and one Re(1) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one W(1), one W(2), and one Al(1) atom. In the fifth O site, O(5) is bonded in a trigonal planar geometry to one W(2), one Re(1), and one Al(1) atom. In the sixth O site, O(6) is bonded in a distorted bent 120 degrees geometry to one W(2) and one Al(1) atom. In the seventh O site, O(7) is bonded in a distorted trigonal planar geometry to one W(1), one W(2), and one Re(1) atom. In the eighth O site, O(8) is bonded in a 3-coordinate geometry to one W(1), one W(2), and one Al(1) atom.