ZnP2H14(CO)8 crystallizes in the orthorhombic Pnma space group. Zn(1) is bonded to one O(2), one O(3), and two equivalent O(1) atoms to form ZnO4 tetrahedra that share corners with two equivalent P(1)CO3 tetrahedra. The Zn(1)-O(2) bond length is 1.99 Å. The Zn(1)-O(3) bond length is 1.97 Å. Both Zn(1)-O(1) bond lengths are 1.92 Å. There are four inequivalent C sites. In the first C site, C(1) is bonded in a distorted trigonal non-coplanar geometry to one C(2), one H(4), one H(5), and one H(6) atom. The C(1)-C(2) bond length is 1.50 Å. The C(1)-H(4) bond length is 1.09 Å. The C(1)-H(5) bond length is 1.10 Å. The C(1)-H(6) bond length is 1.10 Å. In the second C site, C(2) is bonded in a trigonal planar geometry to one C(1), one C(3), and one C(4) atom. The C(2)-C(3) bond length is 1.41 Å. The C(2)-C(4) bond length is 1.40 Å. In the third C site, C(4) is bonded in a distorted trigonal planar geometry to one C(2), one C(3), and one H(7) atom. The C(4)-C(3) bond length is 1.40 Å. The C(4)-H(7) bond length is 1.09 Å. In the fourth C site, C(3) is bonded in a trigonal planar geometry to one C(2), one C(4), and one P(1) atom. The C(3)-P(1) bond length is 1.79 Å. P(1) is bonded to one C(3), one O(1), one O(4), and one O(5) atom to form PCO3 tetrahedra that share  a cornercorner with one Zn(1)O4 tetrahedra. The P(1)-O(1) bond length is 1.52 Å. The P(1)-O(4) bond length is 1.60 Å. The P(1)-O(5) bond length is 1.53 Å. There are seven inequivalent H sites. In the first H site, H(4) is bonded in a single-bond geometry to one C(1) atom. In the second H site, H(1) is bonded in a distorted single-bond geometry to one O(2) and one O(5) atom. The H(1)-O(2) bond length is 1.00 Å. The H(1)-O(5) bond length is 1.65 Å. In the third H site, H(5) is bonded in a single-bond geometry to one C(1) atom. In the fourth H site, H(7) is bonded in a single-bond geometry to one C(4) atom. In the fifth H site, H(2) is bonded in a distorted single-bond geometry to one O(3) and one O(4) atom. The H(2)-O(3) bond length is 0.99 Å. The H(2)-O(4) bond length is 1.67 Å. In the sixth H site, H(6) is bonded in a single-bond geometry to one C(1) atom. In the seventh H site, H(3) is bonded in a linear geometry to one O(4) and one O(5) atom. The H(3)-O(4) bond length is 1.05 Å. The H(3)-O(5) bond length is 1.46 Å. There are five inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to one Zn(1) and one P(1) atom. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one Zn(1) and two equivalent H(1) atoms. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to one Zn(1) and two equivalent H(2) atoms. In the fourth O site, O(5) is bonded in a 3-coordinate geometry to one P(1), one H(1), and one H(3) atom. In the fifth O site, O(4) is bonded in a distorted trigonal planar geometry to one P(1), one H(2), and one H(3) atom. Linkers: 4 Cc1cc(P([O])(=O)O)c(C)cc1P([O])(=O)O. Metal clusters: 4 O.O.[O]P(O)O[Zn]OP([O])O. The MOF has largest included sphere 1.82 A, density 1.89 g/cm3, surface area 3933.97 m2/g, accessible volume 0.12 cm3/g