Zn3P4H4O13 crystallizes in the orthorhombic Pna2_1 space group. There are three inequivalent Zn sites. In the first Zn site, Zn(1) is bonded to one O(10), one O(2), one O(6), and one O(8) atom to form ZnO4 tetrahedra that share  a cornercorner with one P(2)HO3 tetrahedra,  a cornercorner with one P(3)HO3 tetrahedra, and  a cornercorner with one P(4)HO3 tetrahedra. The Zn(1)-O(10) bond length is 1.94 Å. The Zn(1)-O(2) bond length is 1.92 Å. The Zn(1)-O(6) bond length is 1.96 Å. The Zn(1)-O(8) bond length is 1.93 Å. In the second Zn site, Zn(2) is bonded in a 5-coordinate geometry to one O(1), one O(11), one O(13), one O(4), and one O(9) atom. The Zn(2)-O(1) bond length is 1.94 Å. The Zn(2)-O(11) bond length is 1.95 Å. The Zn(2)-O(13) bond length is 1.85 Å. The Zn(2)-O(4) bond length is 1.91 Å. The Zn(2)-O(9) bond length is 1.93 Å. In the third Zn site, Zn(3) is bonded to one O(12), one O(3), one O(5), and one O(7) atom to form ZnO4 tetrahedra that share  a cornercorner with one P(2)HO3 tetrahedra,  a cornercorner with one P(3)HO3 tetrahedra, and  a cornercorner with one P(4)HO3 tetrahedra. The Zn(3)-O(12) bond length is 1.94 Å. The Zn(3)-O(3) bond length is 1.88 Å. The Zn(3)-O(5) bond length is 1.94 Å. The Zn(3)-O(7) bond length is 1.95 Å. There are four inequivalent P sites. In the first P site, P(1) is bonded in a 5-coordinate geometry to one H(1), one O(1), one O(13), one O(2), and one O(3) atom. The P(1)-H(1) bond length is 1.35 Å. The P(1)-O(1) bond length is 1.46 Å. The P(1)-O(13) bond length is 1.58 Å. The P(1)-O(2) bond length is 1.50 Å. The P(1)-O(3) bond length is 1.47 Å. In the second P site, P(2) is bonded to one H(2), one O(4), one O(5), and one O(6) atom to form distorted PHO3 tetrahedra that share  a cornercorner with one Zn(1)O4 tetrahedra and  a cornercorner with one Zn(3)O4 tetrahedra. The P(2)-H(2) bond length is 1.48 Å. The P(2)-O(4) bond length is 1.50 Å. The P(2)-O(5) bond length is 1.51 Å. The P(2)-O(6) bond length is 1.52 Å. In the third P site, P(3) is bonded to one H(3), one O(7), one O(8), and one O(9) atom to form PHO3 tetrahedra that share  a cornercorner with one Zn(1)O4 tetrahedra and  a cornercorner with one Zn(3)O4 tetrahedra. The P(3)-H(3) bond length is 1.30 Å. The P(3)-O(7) bond length is 1.53 Å. The P(3)-O(8) bond length is 1.51 Å. The P(3)-O(9) bond length is 1.51 Å. In the fourth P site, P(4) is bonded to one H(4), one O(10), one O(11), and one O(12) atom to form distorted PHO3 tetrahedra that share  a cornercorner with one Zn(1)O4 tetrahedra and  a cornercorner with one Zn(3)O4 tetrahedra. The P(4)-H(4) bond length is 1.39 Å. The P(4)-O(10) bond length is 1.47 Å. The P(4)-O(11) bond length is 1.50 Å. The P(4)-O(12) bond length is 1.52 Å. There are four inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one P(1) atom. In the second H site, H(2) is bonded in a single-bond geometry to one P(2) atom. In the third H site, H(3) is bonded in a single-bond geometry to one P(3) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one P(4) atom. There are thirteen inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Zn(2), one P(1), and one O(13) atom. The O(1)-O(13) bond length is 0.77 Å. In the second O site, O(2) is bonded in a distorted bent 120 degrees geometry to one Zn(1) and one P(1) atom. In the third O site, O(3) is bonded in a bent 150 degrees geometry to one Zn(3) and one P(1) atom. In the fourth O site, O(4) is bonded in a distorted bent 120 degrees geometry to one Zn(2) and one P(2) atom. In the fifth O site, O(5) is bonded in a bent 120 degrees geometry to one Zn(3) and one P(2) atom. In the sixth O site, O(6) is bonded in a distorted bent 120 degrees geometry to one Zn(1) and one P(2) atom. In the seventh O site, O(7) is bonded in a bent 120 degrees geometry to one Zn(3) and one P(3) atom. In the eighth O site, O(8) is bonded in a bent 150 degrees geometry to one Zn(1) and one P(3) atom. In the ninth O site, O(9) is bonded in a bent 120 degrees geometry to one Zn(2) and one P(3) atom. In the tenth O site, O(10) is bonded in a bent 150 degrees geometry to one Zn(1) and one P(4) atom. In the eleventh O site, O(11) is bonded in a distorted bent 120 degrees geometry to one Zn(2) and one P(4) atom. In the twelfth O site, O(12) is bonded in a bent 150 degrees geometry to one Zn(3) and one P(4) atom. In the thirteenth O site, O(13) is bonded in a distorted T-shaped geometry to one Zn(2), one P(1), and one O(1) atom. Linkers: 2 [O]O[P@@H]([O])=O ,2 [O]O[P@H]([O])=O. Metal clusters: 12 [Zn]. The MOF has largest included sphere 5.58 A, density 1.57 g/cm3, surface area 3000.57 m2/g, accessible volume 0.30 cm3/g