Zn2C8P2N4H12O7 crystallizes in the orthorhombic P2_12_12_1 space group. There are two inequivalent Zn sites. In the first Zn site, Zn(1) is bonded to one N(3), one O(3), one O(4), and one O(6) atom to form ZnNO3 tetrahedra that share  a cornercorner with one P(1)CO3 tetrahedra and corners with two equivalent P(2)CO3 tetrahedra. The Zn(1)-N(3) bond length is 1.96 Å. The Zn(1)-O(3) bond length is 1.96 Å. The Zn(1)-O(4) bond length is 1.95 Å. The Zn(1)-O(6) bond length is 1.99 Å. In the second Zn site, Zn(2) is bonded to one N(4), one O(1), one O(2), and one O(5) atom to form ZnNO3 tetrahedra that share  a cornercorner with one P(2)CO3 tetrahedra and corners with two equivalent P(1)CO3 tetrahedra. The Zn(2)-N(4) bond length is 1.99 Å. The Zn(2)-O(1) bond length is 1.93 Å. The Zn(2)-O(2) bond length is 1.97 Å. The Zn(2)-O(5) bond length is 1.96 Å. There are eight inequivalent C sites. In the first C site, C(1) is bonded in a distorted tetrahedral geometry to one C(2), one P(1), one P(2), and one O(7) atom. The C(1)-C(2) bond length is 1.54 Å. The C(1)-P(1) bond length is 1.86 Å. The C(1)-P(2) bond length is 1.87 Å. The C(1)-O(7) bond length is 1.44 Å. In the second C site, C(2) is bonded in a trigonal non-coplanar geometry to one C(1), one H(1), one H(2), and one H(3) atom. The C(2)-H(1) bond length is 1.10 Å. The C(2)-H(2) bond length is 1.10 Å. The C(2)-H(3) bond length is 1.10 Å. In the third C site, C(3) is bonded in a trigonal planar geometry to one N(1), one N(4), and one H(4) atom. The C(3)-N(1) bond length is 1.35 Å. The C(3)-N(4) bond length is 1.34 Å. The C(3)-H(4) bond length is 1.09 Å. In the fourth C site, C(4) is bonded in a distorted bent 120 degrees geometry to one C(5), one N(1), and one H(6) atom. The C(4)-C(5) bond length is 1.37 Å. The C(4)-N(1) bond length is 1.38 Å. The C(4)-H(6) bond length is 1.08 Å. In the fifth C site, C(5) is bonded in a distorted bent 120 degrees geometry to one C(4), one N(4), and one H(7) atom. The C(5)-N(4) bond length is 1.39 Å. The C(5)-H(7) bond length is 1.09 Å. In the sixth C site, C(6) is bonded in a trigonal planar geometry to one N(2), one N(3), and one H(8) atom. The C(6)-N(2) bond length is 1.35 Å. The C(6)-N(3) bond length is 1.34 Å. The C(6)-H(8) bond length is 1.08 Å. In the seventh C site, C(7) is bonded in a distorted bent 120 degrees geometry to one C(8), one N(2), and one H(10) atom. The C(7)-C(8) bond length is 1.38 Å. The C(7)-N(2) bond length is 1.38 Å. The C(7)-H(10) bond length is 1.09 Å. In the eighth C site, C(8) is bonded in a distorted bent 120 degrees geometry to one C(7), one N(3), and one H(11) atom. The C(8)-N(3) bond length is 1.39 Å. The C(8)-H(11) bond length is 1.08 Å. There are two inequivalent P sites. In the first P site, P(1) is bonded to one C(1), one O(1), one O(2), and one O(3) atom to form PCO3 tetrahedra that share  a cornercorner with one Zn(1)NO3 tetrahedra,  a cornercorner with one P(2)CO3 tetrahedra, and corners with two equivalent Zn(2)NO3 tetrahedra. The P(1)-O(1) bond length is 1.53 Å. The P(1)-O(2) bond length is 1.55 Å. The P(1)-O(3) bond length is 1.54 Å. In the second P site, P(2) is bonded to one C(1), one O(4), one O(5), and one O(6) atom to form PCO3 tetrahedra that share  a cornercorner with one Zn(2)NO3 tetrahedra,  a cornercorner with one P(1)CO3 tetrahedra, and corners with two equivalent Zn(1)NO3 tetrahedra. The P(2)-O(4) bond length is 1.54 Å. The P(2)-O(5) bond length is 1.54 Å. The P(2)-O(6) bond length is 1.55 Å. There are four inequivalent N sites. In the first N site, N(1) is bonded in a trigonal planar geometry to one C(3), one C(4), and one H(5) atom. The N(1)-H(5) bond length is 1.02 Å. In the second N site, N(2) is bonded in a distorted trigonal planar geometry to one C(6), one C(7), and one H(9) atom. The N(2)-H(9) bond length is 1.03 Å. In the third N site, N(3) is bonded in a trigonal planar geometry to one Zn(1), one C(6), and one C(8) atom. In the fourth N site, N(4) is bonded in a trigonal planar geometry to one Zn(2), one C(3), and one C(5) atom. There are twelve inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one C(2) atom. In the second H site, H(2) is bonded in a single-bond geometry to one C(2) atom. In the third H site, H(3) is bonded in a single-bond geometry to one C(2) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one C(3) atom. In the fifth H site, H(5) is bonded in a single-bond geometry to one N(1) atom. In the sixth H site, H(6) is bonded in a single-bond geometry to one C(4) atom. In the seventh H site, H(7) is bonded in a single-bond geometry to one C(5) atom. In the eighth H site, H(8) is bonded in a single-bond geometry to one C(6) atom. In the ninth H site, H(9) is bonded in a single-bond geometry to one N(2) atom. In the tenth H site, H(10) is bonded in a single-bond geometry to one C(7) atom. In the eleventh H site, H(11) is bonded in a single-bond geometry to one C(8) atom. In the twelfth H site, H(12) is bonded in a distorted single-bond geometry to one O(6) and one O(7) atom. The H(12)-O(6) bond length is 1.64 Å. The H(12)-O(7) bond length is 1.00 Å. There are seven inequivalent O sites. In the first O site, O(5) is bonded in a bent 120 degrees geometry to one Zn(2) and one P(2) atom. In the second O site, O(6) is bonded in a distorted trigonal planar geometry to one Zn(1), one P(2), and one H(12) atom. In the third O site, O(7) is bonded in a water-like geometry to one C(1) and one H(12) atom. In the fourth O site, O(1) is bonded in a bent 150 degrees geometry to one Zn(2) and one P(1) atom. In the fifth O site, O(2) is bonded in a bent 120 degrees geometry to one Zn(2) and one P(1) atom. In the sixth O site, O(3) is bonded in a bent 120 degrees geometry to one Zn(1) and one P(1) atom. In the seventh O site, O(4) is bonded in a distorted bent 150 degrees geometry to one Zn(1) and one P(2) atom. Linkers: 4 CC(O)(P([O])([O])=O)P([O])([O])=O. Metal clusters: 8 [Zn]. The MOF has largest included sphere 2.46 A, density 2.10 g/cm3, surface area 3450.38 m2/g, accessible volume 0.08 cm3/g