ZnC8P2H12(NO2)4 crystallizes in the orthorhombic Pbca space group. Zn(1) is bonded to two equivalent N(1), two equivalent O(1), and two equivalent O(4) atoms to form ZnN2O4 octahedra that share corners with two equivalent P(1)CO3 tetrahedra. Both Zn(1)-N(1) bond lengths are 2.22 Å. Both Zn(1)-O(1) bond lengths are 2.09 Å. Both Zn(1)-O(4) bond lengths are 2.12 Å. There are four inequivalent C sites. In the first C site, C(2) is bonded in a trigonal planar geometry to one C(1), one C(3), and one P(1) atom. The C(2)-C(1) bond length is 1.40 Å. The C(2)-C(3) bond length is 1.40 Å. The C(2)-P(1) bond length is 1.82 Å. In the second C site, C(1) is bonded in a distorted trigonal planar geometry to one C(2), one N(1), and one H(1) atom. The C(1)-N(1) bond length is 1.34 Å. The C(1)-H(1) bond length is 1.09 Å. In the third C site, C(3) is bonded in a distorted trigonal planar geometry to one C(2), one N(2), and one H(2) atom. The C(3)-N(2) bond length is 1.34 Å. The C(3)-H(2) bond length is 1.09 Å. In the fourth C site, C(4) is bonded in a trigonal planar geometry to one N(1), one N(2), and one H(3) atom. The C(4)-N(1) bond length is 1.34 Å. The C(4)-N(2) bond length is 1.34 Å. The C(4)-H(3) bond length is 1.09 Å. P(1) is bonded to one C(2), one O(1), one O(2), and one O(3) atom to form PCO3 tetrahedra that share  a cornercorner with one Zn(1)N2O4 octahedra. The corner-sharing octahedral tilt angles are 25°. The P(1)-O(1) bond length is 1.51 Å. The P(1)-O(2) bond length is 1.58 Å. The P(1)-O(3) bond length is 1.53 Å. There are two inequivalent N sites. In the first N site, N(2) is bonded in a distorted bent 120 degrees geometry to one C(3) and one C(4) atom. In the second N site, N(1) is bonded in a trigonal planar geometry to one Zn(1), one C(1), and one C(4) atom. There are six inequivalent H sites. In the first H site, H(4) is bonded in a single-bond geometry to one O(4) atom. The H(4)-O(4) bond length is 1.00 Å. In the second H site, H(1) is bonded in a single-bond geometry to one C(1) atom. In the third H site, H(5) is bonded in a single-bond geometry to one O(4) atom. The H(5)-O(4) bond length is 0.99 Å. In the fourth H site, H(2) is bonded in a single-bond geometry to one C(3) atom. In the fifth H site, H(6) is bonded in a linear geometry to one O(2) and one O(3) atom. The H(6)-O(2) bond length is 1.04 Å. The H(6)-O(3) bond length is 1.46 Å. In the sixth H site, H(3) is bonded in a single-bond geometry to one C(4) atom. There are four inequivalent O sites. In the first O site, O(4) is bonded in a distorted trigonal non-coplanar geometry to one Zn(1), one H(4), and one H(5) atom. In the second O site, O(1) is bonded in a bent 150 degrees geometry to one Zn(1) and one P(1) atom. In the third O site, O(3) is bonded in a distorted bent 120 degrees geometry to one P(1) and one H(6) atom. In the fourth O site, O(2) is bonded in a bent 120 degrees geometry to one P(1) and one H(6) atom. Linkers: 8 [O]P(=O)(O)c1cncnc1. Metal clusters: 4 O.O.[O]P(O)O[Zn]OP([O])O. The MOF has largest included sphere 1.74 A, density 2.04 g/cm3, surface area 3464.73 m2/g, accessible volume 0.11 cm3/g