Fe2CuAl4P4(H8O13)2 crystallizes in the triclinic P-1 space group. Fe(1) is bonded to one O(11), one O(3), one O(4), one O(5), one O(6), and one O(9) atom to form FeO6 octahedra that share  a cornercorner with one Al(2)O6 octahedra,  a cornercorner with one Al(1)O5 square pyramid, and corners with two equivalent P(1)O4 tetrahedra. The corner-sharing octahedral tilt angles are 43°. Cu(1) is bonded in a distorted square co-planar geometry to two equivalent O(1) and two equivalent O(9) atoms. There are two inequivalent Al sites. In the first Al site, Al(1) is bonded to one O(1), one O(12), one O(13), one O(8), and one O(9) atom to form distorted AlO5 square pyramids that share  a cornercorner with one Fe(1)O6 octahedra,  a cornercorner with one P(1)O4 tetrahedra, and  an edgeedge with one Al(2)O6 octahedra. The corner-sharing octahedral tilt angles are 54°. In the second Al site, Al(2) is bonded to one O(1), one O(10), one O(2), one O(5), one O(7), and one O(8) atom to form AlO6 octahedra that share  a cornercorner with one Fe(1)O6 octahedra,  a cornercorner with one P(1)O4 tetrahedra, and  an edgeedge with one Al(1)O5 square pyramid. The corner-sharing octahedral tilt angles are 43°. There are two inequivalent P sites. In the first P site, P(1) is bonded to one O(12), one O(4), one O(6), and one O(7) atom to form PO4 tetrahedra that share  a cornercorner with one Al(2)O6 octahedra, corners with two equivalent Fe(1)O6 octahedra, and  a cornercorner with one Al(1)O5 square pyramid. The corner-sharing octahedral tilt angles range from 39-54°. In the second P site, P(2) is bonded in a distorted trigonal non-coplanar geometry to one O(11), one O(2), and one O(3) atom. There are eight inequivalent H sites. In the first H site, H(1) is bonded in a distorted linear geometry to one O(13) and one O(2) atom. In the second H site, H(2) is bonded in a distorted single-bond geometry to one O(11) and one O(8) atom. In the third H site, H(3) is bonded in a single-bond geometry to one O(9) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one O(5) atom. In the fifth H site, H(5) is bonded in a single-bond geometry to one O(13) atom. In the sixth H site, H(6) is bonded in a single-bond geometry to one O(10) atom. In the seventh H site, H(7) is bonded in a single-bond geometry to one O(1) and one O(6) atom. In the eighth H site, H(8) is bonded in a single-bond geometry to one O(10) and one O(4) atom. There are thirteen inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one Cu(1), one Al(1), one Al(2), and one H(7) atom. In the second O site, O(2) is bonded in a trigonal planar geometry to one Al(2), one P(2), and one H(1) atom. In the third O site, O(3) is bonded in a distorted bent 150 degrees geometry to one Fe(1) and one P(2) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one Fe(1), one P(1), and one H(8) atom. In the fifth O site, O(5) is bonded in a distorted single-bond geometry to one Fe(1), one Al(2), and one H(4) atom. In the sixth O site, O(6) is bonded in a distorted trigonal planar geometry to one Fe(1), one P(1), and one H(7) atom. In the seventh O site, O(7) is bonded in a bent 150 degrees geometry to one Al(2) and one P(1) atom. In the eighth O site, O(8) is bonded in a distorted trigonal planar geometry to one Al(1), one Al(2), and one H(2) atom. In the ninth O site, O(9) is bonded in a distorted single-bond geometry to one Fe(1), one Cu(1), one Al(1), and one H(3) atom. In the tenth O site, O(10) is bonded in a distorted water-like geometry to one Al(2), one H(6), and one H(8) atom. In the eleventh O site, O(11) is bonded in a distorted trigonal non-coplanar geometry to one Fe(1), one P(2), and one H(2) atom. In the twelfth O site, O(12) is bonded in a bent 150 degrees geometry to one Al(1) and one P(1) atom. In the thirteenth O site, O(13) is bonded in a distorted trigonal non-coplanar geometry to one Al(1), one H(1), and one H(5) atom.
Fe2CuAl4P4(H8O13)2 crystallizes in the triclinic P-1 space group. Fe(1) is bonded to one O(11), one O(3), one O(4), one O(5), one O(6), and one O(9) atom to form FeO6 octahedra that share  a cornercorner with one Al(2)O6 octahedra,  a cornercorner with one Al(1)O5 square pyramid, and corners with two equivalent P(1)O4 tetrahedra. The corner-sharing octahedral tilt angles are 43°. The Fe(1)-O(11) bond length is 1.99 Å. The Fe(1)-O(3) bond length is 1.99 Å. The Fe(1)-O(4) bond length is 2.11 Å. The Fe(1)-O(5) bond length is 2.04 Å. The Fe(1)-O(6) bond length is 2.01 Å. The Fe(1)-O(9) bond length is 2.16 Å. Cu(1) is bonded in a distorted square co-planar geometry to two equivalent O(1) and two equivalent O(9) atoms. Both Cu(1)-O(1) bond lengths are 1.94 Å. Both Cu(1)-O(9) bond lengths are 2.04 Å. There are two inequivalent Al sites. In the first Al site, Al(1) is bonded to one O(1), one O(12), one O(13), one O(8), and one O(9) atom to form distorted AlO5 square pyramids that share  a cornercorner with one Fe(1)O6 octahedra,  a cornercorner with one P(1)O4 tetrahedra, and  an edgeedge with one Al(2)O6 octahedra. The corner-sharing octahedral tilt angles are 54°. The Al(1)-O(1) bond length is 1.96 Å. The Al(1)-O(12) bond length is 1.82 Å. The Al(1)-O(13) bond length is 1.93 Å. The Al(1)-O(8) bond length is 1.90 Å. The Al(1)-O(9) bond length is 2.02 Å. In the second Al site, Al(2) is bonded to one O(1), one O(10), one O(2), one O(5), one O(7), and one O(8) atom to form AlO6 octahedra that share  a cornercorner with one Fe(1)O6 octahedra,  a cornercorner with one P(1)O4 tetrahedra, and  an edgeedge with one Al(1)O5 square pyramid. The corner-sharing octahedral tilt angles are 43°. The Al(2)-O(1) bond length is 2.02 Å. The Al(2)-O(10) bond length is 2.03 Å. The Al(2)-O(2) bond length is 1.87 Å. The Al(2)-O(5) bond length is 1.94 Å. The Al(2)-O(7) bond length is 1.81 Å. The Al(2)-O(8) bond length is 1.88 Å. There are two inequivalent P sites. In the first P site, P(1) is bonded to one O(12), one O(4), one O(6), and one O(7) atom to form PO4 tetrahedra that share  a cornercorner with one Al(2)O6 octahedra, corners with two equivalent Fe(1)O6 octahedra, and  a cornercorner with one Al(1)O5 square pyramid. The corner-sharing octahedral tilt angles range from 39-54°. The P(1)-O(12) bond length is 1.53 Å. The P(1)-O(4) bond length is 1.56 Å. The P(1)-O(6) bond length is 1.56 Å. The P(1)-O(7) bond length is 1.54 Å. In the second P site, P(2) is bonded in a distorted trigonal non-coplanar geometry to one O(11), one O(2), and one O(3) atom. The P(2)-O(11) bond length is 1.59 Å. The P(2)-O(2) bond length is 1.60 Å. The P(2)-O(3) bond length is 1.59 Å. There are eight inequivalent H sites. In the first H site, H(1) is bonded in a distorted linear geometry to one O(13) and one O(2) atom. The H(1)-O(13) bond length is 1.02 Å. The H(1)-O(2) bond length is 1.59 Å. In the second H site, H(2) is bonded in a distorted single-bond geometry to one O(11) and one O(8) atom. The H(2)-O(11) bond length is 1.66 Å. The H(2)-O(8) bond length is 1.00 Å. In the third H site, H(3) is bonded in a single-bond geometry to one O(9) atom. The H(3)-O(9) bond length is 0.99 Å. In the fourth H site, H(4) is bonded in a single-bond geometry to one O(5) atom. The H(4)-O(5) bond length is 0.98 Å. In the fifth H site, H(5) is bonded in a single-bond geometry to one O(13) atom. The H(5)-O(13) bond length is 1.00 Å. In the sixth H site, H(6) is bonded in a single-bond geometry to one O(10) atom. The H(6)-O(10) bond length is 0.99 Å. In the seventh H site, H(7) is bonded in a single-bond geometry to one O(1) and one O(6) atom. The H(7)-O(1) bond length is 1.00 Å. The H(7)-O(6) bond length is 1.69 Å. In the eighth H site, H(8) is bonded in a single-bond geometry to one O(10) and one O(4) atom. The H(8)-O(10) bond length is 1.01 Å. The H(8)-O(4) bond length is 1.74 Å. There are thirteen inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one Cu(1), one Al(1), one Al(2), and one H(7) atom. In the second O site, O(2) is bonded in a trigonal planar geometry to one Al(2), one P(2), and one H(1) atom. In the third O site, O(3) is bonded in a distorted bent 150 degrees geometry to one Fe(1) and one P(2) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one Fe(1), one P(1), and one H(8) atom. In the fifth O site, O(5) is bonded in a distorted single-bond geometry to one Fe(1), one Al(2), and one H(4) atom. In the sixth O site, O(6) is bonded in a distorted trigonal planar geometry to one Fe(1), one P(1), and one H(7) atom. In the seventh O site, O(7) is bonded in a bent 150 degrees geometry to one Al(2) and one P(1) atom. In the eighth O site, O(8) is bonded in a distorted trigonal planar geometry to one Al(1), one Al(2), and one H(2) atom. In the ninth O site, O(9) is bonded in a distorted single-bond geometry to one Fe(1), one Cu(1), one Al(1), and one H(3) atom. In the tenth O site, O(10) is bonded in a distorted water-like geometry to one Al(2), one H(6), and one H(8) atom. In the eleventh O site, O(11) is bonded in a distorted trigonal non-coplanar geometry to one Fe(1), one P(2), and one H(2) atom. In the twelfth O site, O(12) is bonded in a bent 150 degrees geometry to one Al(1) and one P(1) atom. In the thirteenth O site, O(13) is bonded in a distorted trigonal non-coplanar geometry to one Al(1), one H(1), and one H(5) atom.