U2O9Cl is Indium-like structured and crystallizes in the monoclinic P2_1/c space group. The structure is zero-dimensional and consists of two U2O9Cl clusters. There are two inequivalent U sites. In the first U site, U(1) is bonded in a 7-coordinate geometry to one O(1), one O(2), one O(6), one O(7), two equivalent O(5), and one Cl(1) atom. In the second U site, U(2) is bonded in a 6-coordinate geometry to one O(3), one O(4), one O(5), one O(6), one O(8), one O(9), and one Cl(1) atom. There are nine inequivalent O sites. In the first O site, O(6) is bonded in a bent 120 degrees geometry to one U(1) and one U(2) atom. In the second O site, O(7) is bonded in a single-bond geometry to one U(1) atom. In the third O site, O(8) is bonded in a single-bond geometry to one U(2) atom. In the fourth O site, O(1) is bonded in a single-bond geometry to one U(1) atom. In the fifth O site, O(9) is bonded in a single-bond geometry to one U(2) atom. In the sixth O site, O(2) is bonded in a single-bond geometry to one U(1) atom. In the seventh O site, O(3) is bonded in a single-bond geometry to one U(2) atom. In the eighth O site, O(4) is bonded in a single-bond geometry to one U(2) atom. In the ninth O site, O(5) is bonded in a trigonal planar geometry to one U(2) and two equivalent U(1) atoms. Cl(1) is bonded in an L-shaped geometry to one U(1) and one U(2) atom.
U2O9Cl is Indium-like structured and crystallizes in the monoclinic P2_1/c space group. The structure is zero-dimensional and consists of two U2O9Cl clusters. There are two inequivalent U sites. In the first U site, U(1) is bonded in a 7-coordinate geometry to one O(1), one O(2), one O(6), one O(7), two equivalent O(5), and one Cl(1) atom. The U(1)-O(1) bond length is 1.83 Å. The U(1)-O(2) bond length is 1.83 Å. The U(1)-O(6) bond length is 2.26 Å. The U(1)-O(7) bond length is 1.87 Å. There is one shorter (2.25 Å) and one longer (2.33 Å) U(1)-O(5) bond length. The U(1)-Cl(1) bond length is 2.85 Å. In the second U site, U(2) is bonded in a 6-coordinate geometry to one O(3), one O(4), one O(5), one O(6), one O(8), one O(9), and one Cl(1) atom. The U(2)-O(3) bond length is 1.84 Å. The U(2)-O(4) bond length is 1.84 Å. The U(2)-O(5) bond length is 2.23 Å. The U(2)-O(6) bond length is 2.06 Å. The U(2)-O(8) bond length is 1.98 Å. The U(2)-O(9) bond length is 2.29 Å. The U(2)-Cl(1) bond length is 2.93 Å. There are nine inequivalent O sites. In the first O site, O(6) is bonded in a bent 120 degrees geometry to one U(1) and one U(2) atom. In the second O site, O(7) is bonded in a single-bond geometry to one U(1) atom. In the third O site, O(8) is bonded in a single-bond geometry to one U(2) atom. In the fourth O site, O(1) is bonded in a single-bond geometry to one U(1) atom. In the fifth O site, O(9) is bonded in a single-bond geometry to one U(2) atom. In the sixth O site, O(2) is bonded in a single-bond geometry to one U(1) atom. In the seventh O site, O(3) is bonded in a single-bond geometry to one U(2) atom. In the eighth O site, O(4) is bonded in a single-bond geometry to one U(2) atom. In the ninth O site, O(5) is bonded in a trigonal planar geometry to one U(2) and two equivalent U(1) atoms. Cl(1) is bonded in an L-shaped geometry to one U(1) and one U(2) atom.