Zn3P2H14(C2O)14 crystallizes in the orthorhombic Pbcn space group. There are two inequivalent Zn sites. In the first Zn site, Zn(1) is bonded to one O(1), one O(3), one O(5), and one O(6) atom to form ZnO4 tetrahedra that share corners with two equivalent P(1)CO3 tetrahedra. The Zn(1)-O(1) bond length is 1.96 Å. The Zn(1)-O(3) bond length is 2.00 Å. The Zn(1)-O(5) bond length is 1.91 Å. The Zn(1)-O(6) bond length is 1.90 Å. In the second Zn site, Zn(2) is bonded to two equivalent O(4) and two equivalent O(7) atoms to form distorted ZnO4 tetrahedra that share corners with two equivalent P(1)CO3 tetrahedra. Both Zn(2)-O(4) bond lengths are 1.93 Å. Both Zn(2)-O(7) bond lengths are 1.88 Å. There are fourteen inequivalent C sites. In the first C site, C(1) is bonded in a bent 120 degrees geometry to one C(2), one O(1), and one O(2) atom. The C(1)-C(2) bond length is 1.51 Å. The C(1)-O(1) bond length is 1.26 Å. The C(1)-O(2) bond length is 1.23 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 1.39 Å. The C(2)-C(4) bond length is 1.38 Å. In the third C site, C(3) is bonded in a single-bond geometry to one C(2), one C(5), and one H(1) atom. The C(3)-C(5) bond length is 1.40 Å. The C(3)-H(1) bond length is 0.93 Å. In the fourth C site, C(4) is bonded in a single-bond geometry to one C(2), one C(6), and one H(2) atom. The C(4)-C(6) bond length is 1.38 Å. The C(4)-H(2) bond length is 0.93 Å. In the fifth C site, C(5) is bonded in a trigonal planar geometry to one C(3), one C(7), and one C(8) atom. The C(5)-C(7) bond length is 1.48 Å. The C(5)-C(8) bond length is 1.39 Å. In the sixth C site, C(6) is bonded in a trigonal planar geometry to one C(4), one C(8), and one C(9) atom. The C(6)-C(8) bond length is 1.39 Å. The C(6)-C(9) bond length is 1.50 Å. In the seventh C site, C(7) is bonded in a trigonal planar geometry to one C(10), one C(11), and one C(5) atom. The C(7)-C(10) bond length is 1.39 Å. The C(7)-C(11) bond length is 1.39 Å. In the eighth C site, C(8) is bonded in a single-bond geometry to one C(5), one C(6), and one H(3) atom. The C(8)-H(3) bond length is 0.93 Å. In the ninth C site, C(9) is bonded in a distorted bent 120 degrees geometry to one C(6), one O(3), and one O(4) atom. The C(9)-O(3) bond length is 1.24 Å. The C(9)-O(4) bond length is 1.23 Å. In the tenth C site, C(10) is bonded in a distorted single-bond geometry to one C(7) and one H(4) atom. The C(10)-H(4) bond length is 0.93 Å. In the eleventh C site, C(11) is bonded in a distorted single-bond geometry to one C(7) and one H(5) atom. The C(11)-H(5) bond length is 0.93 Å. In the twelfth C site, C(12) is bonded in a distorted single-bond geometry to one C(14) and one H(6) atom. The C(12)-C(14) bond length is 1.39 Å. The C(12)-H(6) bond length is 0.93 Å. In the thirteenth C site, C(13) is bonded in a distorted single-bond geometry to one C(14) and one H(7) atom. The C(13)-C(14) bond length is 1.39 Å. The C(13)-H(7) bond length is 0.93 Å. In the fourteenth C site, C(14) is bonded in a trigonal planar geometry to one C(12), one C(13), and one P(1) atom. The C(14)-P(1) bond length is 1.80 Å. P(1) is bonded to one C(14), one O(5), one O(6), and one O(7) atom to form PCO3 tetrahedra that share  a cornercorner with one Zn(2)O4 tetrahedra and corners with two equivalent Zn(1)O4 tetrahedra. The P(1)-O(5) bond length is 1.51 Å. The P(1)-O(6) bond length is 1.51 Å. The P(1)-O(7) bond length is 1.52 Å. There are seven inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one C(3) atom. In the second H site, H(2) is bonded in a single-bond geometry to one C(4) atom. In the third H site, H(3) is bonded in a single-bond geometry to one C(8) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one C(10) atom. In the fifth H site, H(5) is bonded in a single-bond geometry to one C(11) atom. In the sixth H site, H(6) is bonded in a single-bond geometry to one C(12) atom. In the seventh H site, H(7) is bonded in a single-bond geometry to one C(13) atom. There are seven inequivalent O sites. In the first O site, O(1) is bonded in a bent 120 degrees geometry to one Zn(1) and one C(1) atom. In the second O site, O(2) is bonded in a single-bond geometry to one C(1) atom. In the third O site, O(3) is bonded in a bent 120 degrees geometry to one Zn(1) and one C(9) atom. In the fourth O site, O(4) is bonded in a bent 150 degrees geometry to one Zn(2) and one C(9) atom. In the fifth O site, O(5) is bonded in a distorted bent 120 degrees geometry to one Zn(1) and one P(1) atom. In the sixth O site, O(6) is bonded in a distorted bent 150 degrees geometry to one Zn(1) and one P(1) atom. In the seventh O site, O(7) is bonded in a bent 120 degrees geometry to one Zn(2) and one P(1) atom. Linkers: 8 [O]C(=O)c1cc(C([O])=O)cc(-c2ccc(P([O])([O])=O)cc2)c1. Metal clusters: 12 [Zn]. The MOF has largest included sphere 5.13 A, density 1.31 g/cm3, surface area 3839.38 m2/g, accessible volume 0.35 cm3/g