Na8UTh(MoO4)8 crystallizes in the tetragonal I-4 space group. There are two inequivalent Na sites. In the first Na site, Na(1) is bonded to one O(1), one O(3), one O(4), one O(6), one O(7), and one O(8) atom to form distorted NaO6 pentagonal pyramids that share corners with three equivalent Mo(1)O4 tetrahedra, corners with three equivalent Mo(2)O4 tetrahedra, and edges with two equivalent Na(2)O6 pentagonal pyramids. In the second Na site, Na(2) 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 distorted NaO6 pentagonal pyramids that share corners with three equivalent Mo(1)O4 tetrahedra, corners with three equivalent Mo(2)O4 tetrahedra, and edges with two equivalent Na(1)O6 pentagonal pyramids. U(1) is bonded in a 8-coordinate geometry to four equivalent O(1) and four equivalent O(6) atoms. Th(1) is bonded in a 8-coordinate geometry to four equivalent O(2) and four equivalent O(5) atoms. There are two inequivalent Mo sites. In the first Mo site, Mo(1) is bonded to one O(1), one O(3), one O(5), and one O(7) atom to form MoO4 tetrahedra that share corners with three equivalent Na(1)O6 pentagonal pyramids and corners with three equivalent Na(2)O6 pentagonal pyramids. In the second Mo site, Mo(2) is bonded to one O(2), one O(4), one O(6), and one O(8) atom to form MoO4 tetrahedra that share corners with three equivalent Na(1)O6 pentagonal pyramids and corners with three equivalent Na(2)O6 pentagonal pyramids. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to one Na(1), one U(1), and one Mo(1) atom. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one Na(2), one Th(1), and one Mo(2) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to one Na(1), one Na(2), and one Mo(1) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one Na(1), one Na(2), and one Mo(2) atom. In the fifth O site, O(5) is bonded in a distorted trigonal planar geometry to one Na(2), one Th(1), and one Mo(1) atom. In the sixth O site, O(6) is bonded in a distorted trigonal planar geometry to one Na(1), one U(1), and one Mo(2) atom. In the seventh O site, O(7) is bonded in a distorted trigonal planar geometry to one Na(1), one Na(2), and one Mo(1) atom. In the eighth O site, O(8) is bonded in a distorted trigonal planar geometry to one Na(1), one Na(2), and one Mo(2) atom.
Na8UTh(MoO4)8 crystallizes in the tetragonal I-4 space group. There are two inequivalent Na sites. In the first Na site, Na(1) is bonded to one O(1), one O(3), one O(4), one O(6), one O(7), and one O(8) atom to form distorted NaO6 pentagonal pyramids that share corners with three equivalent Mo(1)O4 tetrahedra, corners with three equivalent Mo(2)O4 tetrahedra, and edges with two equivalent Na(2)O6 pentagonal pyramids. The Na(1)-O(1) bond length is 2.54 Å. The Na(1)-O(3) bond length is 2.53 Å. The Na(1)-O(4) bond length is 2.44 Å. The Na(1)-O(6) bond length is 2.60 Å. The Na(1)-O(7) bond length is 2.44 Å. The Na(1)-O(8) bond length is 2.39 Å. In the second Na site, Na(2) 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 distorted NaO6 pentagonal pyramids that share corners with three equivalent Mo(1)O4 tetrahedra, corners with three equivalent Mo(2)O4 tetrahedra, and edges with two equivalent Na(1)O6 pentagonal pyramids. The Na(2)-O(2) bond length is 2.56 Å. The Na(2)-O(3) bond length is 2.45 Å. The Na(2)-O(4) bond length is 2.53 Å. The Na(2)-O(5) bond length is 2.57 Å. The Na(2)-O(7) bond length is 2.39 Å. The Na(2)-O(8) bond length is 2.46 Å. U(1) is bonded in a 8-coordinate geometry to four equivalent O(1) and four equivalent O(6) atoms. All U(1)-O(1) bond lengths are 2.38 Å. All U(1)-O(6) bond lengths are 2.36 Å. Th(1) is bonded in a 8-coordinate geometry to four equivalent O(2) and four equivalent O(5) atoms. All Th(1)-O(2) bond lengths are 2.42 Å. All Th(1)-O(5) bond lengths are 2.43 Å. There are two inequivalent Mo sites. In the first Mo site, Mo(1) is bonded to one O(1), one O(3), one O(5), and one O(7) atom to form MoO4 tetrahedra that share corners with three equivalent Na(1)O6 pentagonal pyramids and corners with three equivalent Na(2)O6 pentagonal pyramids. The Mo(1)-O(1) bond length is 1.83 Å. The Mo(1)-O(3) bond length is 1.77 Å. The Mo(1)-O(5) bond length is 1.85 Å. The Mo(1)-O(7) bond length is 1.77 Å. In the second Mo site, Mo(2) is bonded to one O(2), one O(4), one O(6), and one O(8) atom to form MoO4 tetrahedra that share corners with three equivalent Na(1)O6 pentagonal pyramids and corners with three equivalent Na(2)O6 pentagonal pyramids. The Mo(2)-O(2) bond length is 1.83 Å. The Mo(2)-O(4) bond length is 1.77 Å. The Mo(2)-O(6) bond length is 1.86 Å. The Mo(2)-O(8) bond length is 1.76 Å. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to one Na(1), one U(1), and one Mo(1) atom. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one Na(2), one Th(1), and one Mo(2) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to one Na(1), one Na(2), and one Mo(1) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one Na(1), one Na(2), and one Mo(2) atom. In the fifth O site, O(5) is bonded in a distorted trigonal planar geometry to one Na(2), one Th(1), and one Mo(1) atom. In the sixth O site, O(6) is bonded in a distorted trigonal planar geometry to one Na(1), one U(1), and one Mo(2) atom. In the seventh O site, O(7) is bonded in a distorted trigonal planar geometry to one Na(1), one Na(2), and one Mo(1) atom. In the eighth O site, O(8) is bonded in a distorted trigonal planar geometry to one Na(1), one Na(2), and one Mo(2) atom.