Au2O3 crystallizes in the triclinic P1 space group. There are four inequivalent Au sites. In the first Au site, Au(1) is bonded in a rectangular see-saw-like geometry to one O(1), one O(3), one O(4), and one O(6) atom. In the second Au site, Au(2) is bonded in a rectangular see-saw-like geometry to one O(1), one O(3), one O(4), and one O(5) atom. In the third Au site, Au(3) is bonded in a rectangular see-saw-like geometry to one O(2), one O(3), one O(5), and one O(6) atom. In the fourth Au site, Au(4) is bonded in a rectangular see-saw-like geometry to one O(2), one O(4), one O(5), and one O(6) atom. There are six inequivalent O sites. In the first O site, O(1) is bonded in a water-like geometry to one Au(1) and one Au(2) atom. In the second O site, O(2) is bonded in a water-like geometry to one Au(3) and one Au(4) atom. In the third O site, O(3) is bonded in a trigonal non-coplanar geometry to one Au(1), one Au(2), and one Au(3) atom. In the fourth O site, O(4) is bonded in a trigonal non-coplanar geometry to one Au(1), one Au(2), and one Au(4) atom. In the fifth O site, O(5) is bonded in a trigonal non-coplanar geometry to one Au(2), one Au(3), and one Au(4) atom. In the sixth O site, O(6) is bonded in a trigonal non-coplanar geometry to one Au(1), one Au(3), and one Au(4) atom.
Au2O3 crystallizes in the triclinic P1 space group. There are four inequivalent Au sites. In the first Au site, Au(1) is bonded in a rectangular see-saw-like geometry to one O(1), one O(3), one O(4), and one O(6) atom. The Au(1)-O(1) bond length is 2.04 Å. The Au(1)-O(3) bond length is 2.10 Å. The Au(1)-O(4) bond length is 2.05 Å. The Au(1)-O(6) bond length is 2.07 Å. In the second Au site, Au(2) is bonded in a rectangular see-saw-like geometry to one O(1), one O(3), one O(4), and one O(5) atom. The Au(2)-O(1) bond length is 1.98 Å. The Au(2)-O(3) bond length is 2.12 Å. The Au(2)-O(4) bond length is 2.06 Å. The Au(2)-O(5) bond length is 2.06 Å. In the third Au site, Au(3) is bonded in a rectangular see-saw-like geometry to one O(2), one O(3), one O(5), and one O(6) atom. The Au(3)-O(2) bond length is 2.02 Å. The Au(3)-O(3) bond length is 2.08 Å. The Au(3)-O(5) bond length is 2.13 Å. The Au(3)-O(6) bond length is 2.08 Å. In the fourth Au site, Au(4) is bonded in a rectangular see-saw-like geometry to one O(2), one O(4), one O(5), and one O(6) atom. The Au(4)-O(2) bond length is 1.92 Å. The Au(4)-O(4) bond length is 2.03 Å. The Au(4)-O(5) bond length is 2.03 Å. The Au(4)-O(6) bond length is 2.11 Å. There are six inequivalent O sites. In the first O site, O(1) is bonded in a water-like geometry to one Au(1) and one Au(2) atom. In the second O site, O(2) is bonded in a water-like geometry to one Au(3) and one Au(4) atom. In the third O site, O(3) is bonded in a trigonal non-coplanar geometry to one Au(1), one Au(2), and one Au(3) atom. In the fourth O site, O(4) is bonded in a trigonal non-coplanar geometry to one Au(1), one Au(2), and one Au(4) atom. In the fifth O site, O(5) is bonded in a trigonal non-coplanar geometry to one Au(2), one Au(3), and one Au(4) atom. In the sixth O site, O(6) is bonded in a trigonal non-coplanar geometry to one Au(1), one Au(3), and one Au(4) atom.