(K4Fe2P4H5O15F4)2H2O2 crystallizes in the triclinic P1 space group. The structure consists of one water molecule inside a K4Fe2P4H5O15F4 framework. In the K4Fe2P4H5O15F4 framework, there are four inequivalent K sites. In the first K site, K(1) is bonded in a 1-coordinate geometry to one O(15) and one F(2) atom. In the second K site, K(2) is bonded in a 7-coordinate geometry to one P(3), one O(14), one O(16), one O(2), one O(3), one O(9), and one F(4) atom. In the third K site, K(3) is bonded in a 4-coordinate geometry to one H(3), one O(1), one O(12), one O(15), and one O(6) atom. In the fourth K site, K(4) is bonded in a 8-coordinate geometry to one O(1), one O(16), one O(2), one O(4), one O(7), one O(8), one O(9), and one F(3) atom. There are two inequivalent Fe sites. In the first Fe site, Fe(1) is bonded in a 4-coordinate geometry to one O(1), one O(7), one O(8), one F(1), and one F(4) atom. In the second Fe site, Fe(2) is bonded in a tetrahedral geometry to one H(3), one O(12), one O(3), and one F(2) atom. There are four inequivalent P sites. In the first P site, P(1) is bonded in a trigonal bipyramidal geometry to one O(10), one O(11), one O(13), one O(15), and one F(1) atom. In the second P site, P(2) is bonded in a distorted trigonal non-coplanar geometry to one O(3), one O(4), and one O(9) atom. In the third P site, P(3) is bonded in a 3-coordinate geometry to one K(2), one O(11), one O(8), and one F(3) atom. In the fourth P site, P(4) is bonded in a 5-coordinate geometry to one H(4), one O(13), one O(14), one O(4), and one O(6) atom. There are five inequivalent H sites. In the first H site, H(2) is bonded in a 2-coordinate geometry to one O(15) and one O(2) atom. In the second H site, H(3) is bonded in a distorted water-like geometry to one K(3) and one Fe(2) atom. In the third H site, H(4) is bonded in a single-bond geometry to one P(4) atom. In the fourth H site, H(5) is bonded in a single-bond geometry to one O(12) atom. In the fifth H site, H(6) is bonded in a single-bond geometry to one O(16) atom. There are fifteen inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one K(3), one K(4), one Fe(1), and one O(7) atom. In the second O site, O(2) is bonded in a single-bond geometry to one K(2), one K(4), and one H(2) atom. In the third O site, O(3) is bonded in a bent 120 degrees geometry to one K(2), one Fe(2), and one P(2) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one K(4), one P(2), and one P(4) atom. In the fifth O site, O(6) is bonded in a distorted single-bond geometry to one K(3) and one P(4) atom. In the sixth O site, O(7) is bonded in a 3-coordinate geometry to one K(4), one Fe(1), and one O(1) atom. In the seventh O site, O(8) is bonded in a distorted bent 150 degrees geometry to one K(4), one Fe(1), and one P(3) atom. In the eighth O site, O(9) is bonded in a 4-coordinate geometry to one K(2), one K(4), one P(2), and one O(14) atom. In the ninth O site, O(10) is bonded in a distorted single-bond geometry to one P(1) atom. In the tenth O site, O(11) is bonded in a bent 150 degrees geometry to one P(1) and one P(3) atom. In the eleventh O site, O(12) is bonded in a distorted single-bond geometry to one K(3), one Fe(2), and one H(5) atom. In the twelfth O site, O(13) is bonded in a distorted bent 150 degrees geometry to one P(1) and one P(4) atom. In the thirteenth O site, O(14) is bonded in a distorted single-bond geometry to one K(2), one P(4), and one O(9) atom. In the fourteenth O site, O(15) is bonded in a 4-coordinate geometry to one K(1), one K(3), one P(1), and one H(2) atom. In the fifteenth O site, O(16) is bonded in a single-bond geometry to one K(2), one K(4), and one H(6) atom. There are four inequivalent F sites. In the first F site, F(1) is bonded in a bent 120 degrees geometry to one Fe(1) and one P(1) atom. In the second F site, F(2) is bonded in a 2-coordinate geometry to one K(1) and one Fe(2) atom. In the third F site, F(3) is bonded in a distorted water-like geometry to one K(4) and one P(3) atom. In the fourth F site, F(4) is bonded in a distorted bent 150 degrees geometry to one K(2) and one Fe(1) atom.
(K4Fe2P4H5O15F4)2H2O2 crystallizes in the triclinic P1 space group. The structure consists of one water molecule inside a K4Fe2P4H5O15F4 framework. In the K4Fe2P4H5O15F4 framework, there are four inequivalent K sites. In the first K site, K(1) is bonded in a 1-coordinate geometry to one O(15) and one F(2) atom. The K(1)-O(15) bond length is 2.78 Å. The K(1)-F(2) bond length is 2.66 Å. In the second K site, K(2) is bonded in a 7-coordinate geometry to one P(3), one O(14), one O(16), one O(2), one O(3), one O(9), and one F(4) atom. The K(2)-P(3) bond length is 3.22 Å. The K(2)-O(14) bond length is 3.13 Å. The K(2)-O(16) bond length is 2.81 Å. The K(2)-O(2) bond length is 3.23 Å. The K(2)-O(3) bond length is 3.34 Å. The K(2)-O(9) bond length is 2.76 Å. The K(2)-F(4) bond length is 2.48 Å. In the third K site, K(3) is bonded in a 4-coordinate geometry to one H(3), one O(1), one O(12), one O(15), and one O(6) atom. The K(3)-H(3) bond length is 2.45 Å. The K(3)-O(1) bond length is 3.06 Å. The K(3)-O(12) bond length is 2.53 Å. The K(3)-O(15) bond length is 2.74 Å. The K(3)-O(6) bond length is 2.60 Å. In the fourth K site, K(4) is bonded in a 8-coordinate geometry to one O(1), one O(16), one O(2), one O(4), one O(7), one O(8), one O(9), and one F(3) atom. The K(4)-O(1) bond length is 2.92 Å. The K(4)-O(16) bond length is 3.02 Å. The K(4)-O(2) bond length is 3.04 Å. The K(4)-O(4) bond length is 2.88 Å. The K(4)-O(7) bond length is 2.62 Å. The K(4)-O(8) bond length is 3.01 Å. The K(4)-O(9) bond length is 2.66 Å. The K(4)-F(3) bond length is 2.70 Å. There are two inequivalent Fe sites. In the first Fe site, Fe(1) is bonded in a 4-coordinate geometry to one O(1), one O(7), one O(8), one F(1), and one F(4) atom. The Fe(1)-O(1) bond length is 2.47 Å. The Fe(1)-O(7) bond length is 2.06 Å. The Fe(1)-O(8) bond length is 2.02 Å. The Fe(1)-F(1) bond length is 2.05 Å. The Fe(1)-F(4) bond length is 1.97 Å. In the second Fe site, Fe(2) is bonded in a tetrahedral geometry to one H(3), one O(12), one O(3), and one F(2) atom. The Fe(2)-H(3) bond length is 1.67 Å. The Fe(2)-O(12) bond length is 1.90 Å. The Fe(2)-O(3) bond length is 1.93 Å. The Fe(2)-F(2) bond length is 1.85 Å. There are four inequivalent P sites. In the first P site, P(1) is bonded in a trigonal bipyramidal geometry to one O(10), one O(11), one O(13), one O(15), and one F(1) atom. The P(1)-O(10) bond length is 1.72 Å. The P(1)-O(11) bond length is 1.58 Å. The P(1)-O(13) bond length is 1.66 Å. The P(1)-O(15) bond length is 1.52 Å. The P(1)-F(1) bond length is 1.89 Å. In the second P site, P(2) is bonded in a distorted trigonal non-coplanar geometry to one O(3), one O(4), and one O(9) atom. The P(2)-O(3) bond length is 1.61 Å. The P(2)-O(4) bond length is 1.65 Å. The P(2)-O(9) bond length is 1.77 Å. In the third P site, P(3) is bonded in a 3-coordinate geometry to one K(2), one O(11), one O(8), and one F(3) atom. The P(3)-O(11) bond length is 1.71 Å. The P(3)-O(8) bond length is 1.53 Å. The P(3)-F(3) bond length is 1.69 Å. In the fourth P site, P(4) is bonded in a 5-coordinate geometry to one H(4), one O(13), one O(14), one O(4), and one O(6) atom. The P(4)-H(4) bond length is 1.41 Å. The P(4)-O(13) bond length is 1.68 Å. The P(4)-O(14) bond length is 1.74 Å. The P(4)-O(4) bond length is 1.96 Å. The P(4)-O(6) bond length is 1.51 Å. There are five inequivalent H sites. In the first H site, H(2) is bonded in a 2-coordinate geometry to one O(15) and one O(2) atom. The H(2)-O(15) bond length is 1.62 Å. The H(2)-O(2) bond length is 1.02 Å. In the second H site, H(3) is bonded in a distorted water-like geometry to one K(3) and one Fe(2) atom. In the third H site, H(4) is bonded in a single-bond geometry to one P(4) atom. In the fourth H site, H(5) is bonded in a single-bond geometry to one O(12) atom. The H(5)-O(12) bond length is 0.98 Å. In the fifth H site, H(6) is bonded in a single-bond geometry to one O(16) atom. The H(6)-O(16) bond length is 1.02 Å. There are fifteen inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one K(3), one K(4), one Fe(1), and one O(7) atom. The O(1)-O(7) bond length is 1.37 Å. In the second O site, O(2) is bonded in a single-bond geometry to one K(2), one K(4), and one H(2) atom. In the third O site, O(3) is bonded in a bent 120 degrees geometry to one K(2), one Fe(2), and one P(2) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one K(4), one P(2), and one P(4) atom. In the fifth O site, O(6) is bonded in a distorted single-bond geometry to one K(3) and one P(4) atom. In the sixth O site, O(7) is bonded in a 3-coordinate geometry to one K(4), one Fe(1), and one O(1) atom. In the seventh O site, O(8) is bonded in a distorted bent 150 degrees geometry to one K(4), one Fe(1), and one P(3) atom. In the eighth O site, O(9) is bonded in a 4-coordinate geometry to one K(2), one K(4), one P(2), and one O(14) atom. The O(9)-O(14) bond length is 1.55 Å. In the ninth O site, O(10) is bonded in a distorted single-bond geometry to one P(1) atom. In the tenth O site, O(11) is bonded in a bent 150 degrees geometry to one P(1) and one P(3) atom. In the eleventh O site, O(12) is bonded in a distorted single-bond geometry to one K(3), one Fe(2), and one H(5) atom. In the twelfth O site, O(13) is bonded in a distorted bent 150 degrees geometry to one P(1) and one P(4) atom. In the thirteenth O site, O(14) is bonded in a distorted single-bond geometry to one K(2), one P(4), and one O(9) atom. In the fourteenth O site, O(15) is bonded in a 4-coordinate geometry to one K(1), one K(3), one P(1), and one H(2) atom. In the fifteenth O site, O(16) is bonded in a single-bond geometry to one K(2), one K(4), and one H(6) atom. There are four inequivalent F sites. In the first F site, F(1) is bonded in a bent 120 degrees geometry to one Fe(1) and one P(1) atom. In the second F site, F(2) is bonded in a 2-coordinate geometry to one K(1) and one Fe(2) atom. In the third F site, F(3) is bonded in a distorted water-like geometry to one K(4) and one P(3) atom. In the fourth F site, F(4) is bonded in a distorted bent 150 degrees geometry to one K(2) and one Fe(1) atom.