U3S3O16 crystallizes in the tetragonal I4/m space group. There are two inequivalent U sites. In the first U site, U(1) is bonded in a 8-coordinate geometry to four equivalent O(1) and four equivalent O(3) atoms. In the second U site, U(2) is bonded in a 8-coordinate geometry to one O(4), one O(5), two equivalent O(2), and four equivalent O(1) atoms. There are two inequivalent S sites. In the first S site, S(1) is bonded in a tetrahedral geometry to four equivalent O(2) atoms. In the second S site, S(2) is bonded in a tetrahedral geometry to one O(4), one O(5), and two equivalent O(3) atoms. There are five inequivalent O sites. In the first O site, O(2) is bonded in a bent 150 degrees geometry to one U(2) and one S(1) atom. In the second O site, O(3) is bonded in a bent 150 degrees geometry to one U(1) and one S(2) atom. In the third O site, O(4) is bonded in a distorted bent 150 degrees geometry to one U(2) and one S(2) atom. In the fourth O site, O(5) is bonded in a distorted single-bond geometry to one U(2) and one S(2) atom. In the fifth O site, O(1) is bonded in a trigonal non-coplanar geometry to one U(1) and two equivalent U(2) atoms.
U3S3O16 crystallizes in the tetragonal I4/m space group. There are two inequivalent U sites. In the first U site, U(1) is bonded in a 8-coordinate geometry to four equivalent O(1) and four equivalent O(3) atoms. All U(1)-O(1) bond lengths are 2.23 Å. All U(1)-O(3) bond lengths are 2.36 Å. In the second U site, U(2) is bonded in a 8-coordinate geometry to one O(4), one O(5), two equivalent O(2), and four equivalent O(1) atoms. The U(2)-O(4) bond length is 2.34 Å. The U(2)-O(5) bond length is 2.41 Å. Both U(2)-O(2) bond lengths are 2.38 Å. There are two shorter (2.23 Å) and two longer (2.27 Å) U(2)-O(1) bond lengths. There are two inequivalent S sites. In the first S site, S(1) is bonded in a tetrahedral geometry to four equivalent O(2) atoms. All S(1)-O(2) bond lengths are 1.49 Å. In the second S site, S(2) is bonded in a tetrahedral geometry to one O(4), one O(5), and two equivalent O(3) atoms. The S(2)-O(4) bond length is 1.48 Å. The S(2)-O(5) bond length is 1.47 Å. Both S(2)-O(3) bond lengths are 1.48 Å. There are five inequivalent O sites. In the first O site, O(2) is bonded in a bent 150 degrees geometry to one U(2) and one S(1) atom. In the second O site, O(3) is bonded in a bent 150 degrees geometry to one U(1) and one S(2) atom. In the third O site, O(4) is bonded in a distorted bent 150 degrees geometry to one U(2) and one S(2) atom. In the fourth O site, O(5) is bonded in a distorted single-bond geometry to one U(2) and one S(2) atom. In the fifth O site, O(1) is bonded in a trigonal non-coplanar geometry to one U(1) and two equivalent U(2) atoms.