Na6BaTh(CO4)6 crystallizes in the trigonal R-3 space group. Na(1) is bonded in a 8-coordinate geometry to one O(2), two equivalent O(3), two equivalent O(4), and three equivalent O(1) atoms. Ba(1) is bonded to six equivalent O(2) and six equivalent O(4) atoms to form BaO12 cuboctahedra that share faces with two equivalent Th(1)O12 cuboctahedra. Th(1) is bonded to six equivalent O(1) and six equivalent O(2) atoms to form ThO12 cuboctahedra that share faces with two equivalent Ba(1)O12 cuboctahedra. C(1) is bonded in a trigonal planar geometry to one O(1), one O(2), and one O(3) atom. There are four inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to three equivalent Na(1), one Th(1), and one C(1) atom. In the second O site, O(2) is bonded in a 1-coordinate geometry to one Na(1), one Ba(1), one Th(1), and one C(1) atom. In the third O site, O(3) is bonded in a distorted T-shaped geometry to two equivalent Na(1) and one C(1) atom. In the fourth O site, O(4) is bonded in a distorted T-shaped geometry to two equivalent Na(1) and one Ba(1) atom.
Na6BaTh(CO4)6 crystallizes in the trigonal R-3 space group. Na(1) is bonded in a 8-coordinate geometry to one O(2), two equivalent O(3), two equivalent O(4), and three equivalent O(1) atoms. The Na(1)-O(2) bond length is 2.33 Å. There is one shorter (2.36 Å) and one longer (2.44 Å) Na(1)-O(3) bond length. There is one shorter (2.52 Å) and one longer (2.74 Å) Na(1)-O(4) bond length. There are a spread of Na(1)-O(1) bond distances ranging from 2.62-2.85 Å. Ba(1) is bonded to six equivalent O(2) and six equivalent O(4) atoms to form BaO12 cuboctahedra that share faces with two equivalent Th(1)O12 cuboctahedra. All Ba(1)-O(2) bond lengths are 2.89 Å. All Ba(1)-O(4) bond lengths are 2.95 Å. Th(1) is bonded to six equivalent O(1) and six equivalent O(2) atoms to form ThO12 cuboctahedra that share faces with two equivalent Ba(1)O12 cuboctahedra. All Th(1)-O(1) bond lengths are 2.71 Å. All Th(1)-O(2) bond lengths are 2.53 Å. C(1) is bonded in a trigonal planar geometry to one O(1), one O(2), and one O(3) atom. The C(1)-O(1) bond length is 1.30 Å. The C(1)-O(2) bond length is 1.30 Å. The C(1)-O(3) bond length is 1.29 Å. There are four inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to three equivalent Na(1), one Th(1), and one C(1) atom. In the second O site, O(2) is bonded in a 1-coordinate geometry to one Na(1), one Ba(1), one Th(1), and one C(1) atom. In the third O site, O(3) is bonded in a distorted T-shaped geometry to two equivalent Na(1) and one C(1) atom. In the fourth O site, O(4) is bonded in a distorted T-shaped geometry to two equivalent Na(1) and one Ba(1) atom.