CsUGa(PO5)2 crystallizes in the triclinic P-1 space group. Cs(1) is bonded in a 8-coordinate geometry to one O(2), one O(4), one O(5), one O(8), two equivalent O(1), and two equivalent O(6) atoms. U(1) is bonded in a 7-coordinate geometry to one O(1), one O(2), one O(3), one O(5), one O(6), and two equivalent O(7) atoms. Ga(1) is bonded to one O(10), one O(4), one O(8), and one O(9) atom to form GaO4 tetrahedra that share corners with two equivalent P(1)O4 tetrahedra and corners with two equivalent P(2)O4 tetrahedra. There are two inequivalent P sites. In the first P site, P(1) is bonded to one O(4), one O(6), one O(7), and one O(9) atom to form PO4 tetrahedra that share corners with two equivalent Ga(1)O4 tetrahedra. In the second P site, P(2) is bonded to one O(10), one O(2), one O(3), and one O(8) atom to form PO4 tetrahedra that share corners with two equivalent Ga(1)O4 tetrahedra. There are ten inequivalent O sites. In the first O site, O(1) is bonded in a single-bond geometry to two equivalent Cs(1) and one U(1) atom. In the second O site, O(2) is bonded in a 2-coordinate geometry to one Cs(1), one U(1), and one P(2) atom. In the third O site, O(3) is bonded in a bent 150 degrees geometry to one U(1) and one P(2) atom. In the fourth O site, O(4) is bonded in a distorted bent 120 degrees geometry to one Cs(1), one Ga(1), and one P(1) atom. In the fifth O site, O(5) is bonded in a distorted single-bond geometry to one Cs(1) and one U(1) atom. In the sixth O site, O(6) is bonded in a distorted single-bond geometry to two equivalent Cs(1), one U(1), and one P(1) atom. In the seventh O site, O(7) is bonded in a distorted single-bond geometry to two equivalent U(1) and one P(1) atom. In the eighth O site, O(8) is bonded in a 2-coordinate geometry to one Cs(1), one Ga(1), and one P(2) atom. In the ninth O site, O(9) is bonded in a bent 150 degrees geometry to one Ga(1) and one P(1) atom. In the tenth O site, O(10) is bonded in a bent 120 degrees geometry to one Ga(1) and one P(2) atom.
CsUGa(PO5)2 crystallizes in the triclinic P-1 space group. Cs(1) is bonded in a 8-coordinate geometry to one O(2), one O(4), one O(5), one O(8), two equivalent O(1), and two equivalent O(6) atoms. The Cs(1)-O(2) bond length is 3.29 Å. The Cs(1)-O(4) bond length is 3.50 Å. The Cs(1)-O(5) bond length is 3.12 Å. The Cs(1)-O(8) bond length is 3.43 Å. There is one shorter (3.19 Å) and one longer (3.32 Å) Cs(1)-O(1) bond length. There is one shorter (3.22 Å) and one longer (3.55 Å) Cs(1)-O(6) bond length. U(1) is bonded in a 7-coordinate geometry to one O(1), one O(2), one O(3), one O(5), one O(6), and two equivalent O(7) atoms. The U(1)-O(1) bond length is 1.82 Å. The U(1)-O(2) bond length is 2.31 Å. The U(1)-O(3) bond length is 2.28 Å. The U(1)-O(5) bond length is 1.82 Å. The U(1)-O(6) bond length is 2.49 Å. There is one shorter (2.41 Å) and one longer (2.55 Å) U(1)-O(7) bond length. Ga(1) is bonded to one O(10), one O(4), one O(8), and one O(9) atom to form GaO4 tetrahedra that share corners with two equivalent P(1)O4 tetrahedra and corners with two equivalent P(2)O4 tetrahedra. The Ga(1)-O(10) bond length is 1.83 Å. The Ga(1)-O(4) bond length is 1.85 Å. The Ga(1)-O(8) bond length is 1.86 Å. The Ga(1)-O(9) bond length is 1.84 Å. There are two inequivalent P sites. In the first P site, P(1) is bonded to one O(4), one O(6), one O(7), and one O(9) atom to form PO4 tetrahedra that share corners with two equivalent Ga(1)O4 tetrahedra. The P(1)-O(4) bond length is 1.56 Å. The P(1)-O(6) bond length is 1.53 Å. The P(1)-O(7) bond length is 1.56 Å. The P(1)-O(9) bond length is 1.55 Å. In the second P site, P(2) is bonded to one O(10), one O(2), one O(3), and one O(8) atom to form PO4 tetrahedra that share corners with two equivalent Ga(1)O4 tetrahedra. The P(2)-O(10) bond length is 1.56 Å. The P(2)-O(2) bond length is 1.54 Å. The P(2)-O(3) bond length is 1.53 Å. The P(2)-O(8) bond length is 1.57 Å. There are ten inequivalent O sites. In the first O site, O(1) is bonded in a single-bond geometry to two equivalent Cs(1) and one U(1) atom. In the second O site, O(2) is bonded in a 2-coordinate geometry to one Cs(1), one U(1), and one P(2) atom. In the third O site, O(3) is bonded in a bent 150 degrees geometry to one U(1) and one P(2) atom. In the fourth O site, O(4) is bonded in a distorted bent 120 degrees geometry to one Cs(1), one Ga(1), and one P(1) atom. In the fifth O site, O(5) is bonded in a distorted single-bond geometry to one Cs(1) and one U(1) atom. In the sixth O site, O(6) is bonded in a distorted single-bond geometry to two equivalent Cs(1), one U(1), and one P(1) atom. In the seventh O site, O(7) is bonded in a distorted single-bond geometry to two equivalent U(1) and one P(1) atom. In the eighth O site, O(8) is bonded in a 2-coordinate geometry to one Cs(1), one Ga(1), and one P(2) atom. In the ninth O site, O(9) is bonded in a bent 150 degrees geometry to one Ga(1) and one P(1) atom. In the tenth O site, O(10) is bonded in a bent 120 degrees geometry to one Ga(1) and one P(2) atom.