CsCuP3H8O13 crystallizes in the triclinic P-1 space group. Cs(1) is bonded in a 9-coordinate geometry to one O(1), one O(11), one O(12), one O(13), one O(3), one O(4), one O(9), and two equivalent O(2) atoms. There are two inequivalent Cu sites. In the first Cu site, Cu(1) is bonded in a distorted octahedral geometry to two equivalent O(10), two equivalent O(11), and two equivalent O(13) atoms. In the second Cu site, Cu(2) is bonded to two equivalent O(1), two equivalent O(12), and two equivalent O(9) atoms to form CuO6 octahedra that share corners with two equivalent P(1)O4 tetrahedra and corners with two equivalent P(3)O4 tetrahedra. There are three inequivalent P sites. In the first P site, P(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form PO4 tetrahedra that share  a cornercorner with one Cu(2)O6 octahedra,  a cornercorner with one P(2)O4 tetrahedra, and  a cornercorner with one P(3)O4 tetrahedra. The corner-sharing octahedral tilt angles are 60°. In the second P site, P(2) is bonded to one O(3), one O(5), one O(6), and one O(7) atom to form corner-sharing PO4 tetrahedra. In the third P site, P(3) is bonded to one O(4), one O(7), one O(8), and one O(9) atom to form PO4 tetrahedra that share  a cornercorner with one Cu(2)O6 octahedra,  a cornercorner with one P(1)O4 tetrahedra, and  a cornercorner with one P(2)O4 tetrahedra. The corner-sharing octahedral tilt angles are 44°. There are eight inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one O(10) atom. In the second H site, H(2) is bonded in a distorted linear geometry to one O(10) and one O(6) atom. In the third H site, H(3) is bonded in a distorted linear geometry to one O(11) and one O(5) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one O(11) atom. In the fifth H site, H(5) is bonded in a single-bond geometry to one O(12) atom. In the sixth H site, H(6) is bonded in a distorted linear geometry to one O(12) and one O(5) atom. In the seventh H site, H(7) is bonded in a single-bond geometry to one O(13) atom. In the eighth H site, H(8) is bonded in a single-bond geometry to one O(13) atom. There are thirteen inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one Cs(1), one Cu(2), and one P(1) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to two equivalent Cs(1) and one P(1) atom. In the third O site, O(3) is bonded in a bent 120 degrees geometry to one Cs(1), one P(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 P(1), and one P(3) atom. In the fifth O site, O(5) is bonded in a distorted trigonal planar geometry to one P(2), one H(3), and one H(6) atom. In the sixth O site, O(6) is bonded in a bent 150 degrees geometry to one P(2) and one H(2) atom. In the seventh O site, O(7) is bonded in a bent 120 degrees geometry to one P(2) and one P(3) atom. In the eighth O site, O(8) is bonded in a distorted single-bond geometry to one P(3) atom. In the ninth O site, O(9) is bonded in a 2-coordinate geometry to one Cs(1), one Cu(2), and one P(3) atom. In the tenth O site, O(10) is bonded in a distorted trigonal non-coplanar geometry to one Cu(1), one H(1), and one H(2) atom. In the eleventh O site, O(11) is bonded in a distorted trigonal non-coplanar geometry to one Cs(1), one Cu(1), one H(3), and one H(4) atom. In the twelfth O site, O(12) is bonded in a 3-coordinate geometry to one Cs(1), one Cu(2), one H(5), and one H(6) atom. In the thirteenth O site, O(13) is bonded in a water-like geometry to one Cs(1), one Cu(1), one H(7), and one H(8) atom.
CsCuP3H8O13 crystallizes in the triclinic P-1 space group. Cs(1) is bonded in a 9-coordinate geometry to one O(1), one O(11), one O(12), one O(13), one O(3), one O(4), one O(9), and two equivalent O(2) atoms. The Cs(1)-O(1) bond length is 3.15 Å. The Cs(1)-O(11) bond length is 3.44 Å. The Cs(1)-O(12) bond length is 3.24 Å. The Cs(1)-O(13) bond length is 3.14 Å. The Cs(1)-O(3) bond length is 3.42 Å. The Cs(1)-O(4) bond length is 3.45 Å. The Cs(1)-O(9) bond length is 3.17 Å. There is one shorter (3.09 Å) and one longer (3.27 Å) Cs(1)-O(2) bond length. There are two inequivalent Cu sites. In the first Cu site, Cu(1) is bonded in a distorted octahedral geometry to two equivalent O(10), two equivalent O(11), and two equivalent O(13) atoms. Both Cu(1)-O(10) bond lengths are 1.99 Å. Both Cu(1)-O(11) bond lengths are 1.99 Å. Both Cu(1)-O(13) bond lengths are 2.56 Å. In the second Cu site, Cu(2) is bonded to two equivalent O(1), two equivalent O(12), and two equivalent O(9) atoms to form CuO6 octahedra that share corners with two equivalent P(1)O4 tetrahedra and corners with two equivalent P(3)O4 tetrahedra. Both Cu(2)-O(1) bond lengths are 2.47 Å. Both Cu(2)-O(12) bond lengths are 2.00 Å. Both Cu(2)-O(9) bond lengths are 1.98 Å. There are three inequivalent P sites. In the first P site, P(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form PO4 tetrahedra that share  a cornercorner with one Cu(2)O6 octahedra,  a cornercorner with one P(2)O4 tetrahedra, and  a cornercorner with one P(3)O4 tetrahedra. The corner-sharing octahedral tilt angles are 60°. The P(1)-O(1) bond length is 1.50 Å. The P(1)-O(2) bond length is 1.50 Å. The P(1)-O(3) bond length is 1.63 Å. The P(1)-O(4) bond length is 1.64 Å. In the second P site, P(2) is bonded to one O(3), one O(5), one O(6), and one O(7) atom to form corner-sharing PO4 tetrahedra. The P(2)-O(3) bond length is 1.63 Å. The P(2)-O(5) bond length is 1.51 Å. The P(2)-O(6) bond length is 1.49 Å. The P(2)-O(7) bond length is 1.63 Å. In the third P site, P(3) is bonded to one O(4), one O(7), one O(8), and one O(9) atom to form PO4 tetrahedra that share  a cornercorner with one Cu(2)O6 octahedra,  a cornercorner with one P(1)O4 tetrahedra, and  a cornercorner with one P(2)O4 tetrahedra. The corner-sharing octahedral tilt angles are 44°. The P(3)-O(4) bond length is 1.61 Å. The P(3)-O(7) bond length is 1.62 Å. The P(3)-O(8) bond length is 1.50 Å. The P(3)-O(9) bond length is 1.51 Å. There are eight inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one O(10) atom. The H(1)-O(10) bond length is 1.00 Å. In the second H site, H(2) is bonded in a distorted linear geometry to one O(10) and one O(6) atom. The H(2)-O(10) bond length is 1.01 Å. The H(2)-O(6) bond length is 1.62 Å. In the third H site, H(3) is bonded in a distorted linear geometry to one O(11) and one O(5) atom. The H(3)-O(11) bond length is 1.01 Å. The H(3)-O(5) bond length is 1.62 Å. In the fourth H site, H(4) is bonded in a single-bond geometry to one O(11) atom. The H(4)-O(11) bond length is 1.00 Å. In the fifth H site, H(5) is bonded in a single-bond geometry to one O(12) atom. The H(5)-O(12) bond length is 1.00 Å. In the sixth H site, H(6) is bonded in a distorted linear geometry to one O(12) and one O(5) atom. The H(6)-O(12) bond length is 1.01 Å. The H(6)-O(5) bond length is 1.64 Å. In the seventh H site, H(7) is bonded in a single-bond geometry to one O(13) atom. The H(7)-O(13) bond length is 0.99 Å. In the eighth H site, H(8) is bonded in a single-bond geometry to one O(13) atom. The H(8)-O(13) bond length is 0.98 Å. There are thirteen inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one Cs(1), one Cu(2), and one P(1) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to two equivalent Cs(1) and one P(1) atom. In the third O site, O(3) is bonded in a bent 120 degrees geometry to one Cs(1), one P(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 P(1), and one P(3) atom. In the fifth O site, O(5) is bonded in a distorted trigonal planar geometry to one P(2), one H(3), and one H(6) atom. In the sixth O site, O(6) is bonded in a bent 150 degrees geometry to one P(2) and one H(2) atom. In the seventh O site, O(7) is bonded in a bent 120 degrees geometry to one P(2) and one P(3) atom. In the eighth O site, O(8) is bonded in a distorted single-bond geometry to one P(3) atom. In the ninth O site, O(9) is bonded in a 2-coordinate geometry to one Cs(1), one Cu(2), and one P(3) atom. In the tenth O site, O(10) is bonded in a distorted trigonal non-coplanar geometry to one Cu(1), one H(1), and one H(2) atom. In the eleventh O site, O(11) is bonded in a distorted trigonal non-coplanar geometry to one Cs(1), one Cu(1), one H(3), and one H(4) atom. In the twelfth O site, O(12) is bonded in a 3-coordinate geometry to one Cs(1), one Cu(2), one H(5), and one H(6) atom. In the thirteenth O site, O(13) is bonded in a water-like geometry to one Cs(1), one Cu(1), one H(7), and one H(8) atom.