Ag2CPH2O3 crystallizes in the monoclinic P2_1/c space group. There are two inequivalent Ag sites. In the first Ag site, Ag(1) is bonded to one O(2), one O(3), and two equivalent O(1) atoms to form distorted AgO4 tetrahedra that share corners with four equivalent P(1)CO3 tetrahedra and  an edgeedge with one Ag(1)O4 tetrahedra. The Ag(1)-O(2) bond length is 2.29 Å. The Ag(1)-O(3) bond length is 2.38 Å. There is one shorter (2.43 Å) and one longer (2.49 Å) Ag(1)-O(1) bond length. In the second Ag site, Ag(2) is bonded in a 3-coordinate geometry to one O(1), one O(2), and one O(3) atom. The Ag(2)-O(1) bond length is 2.43 Å. The Ag(2)-O(2) bond length is 2.19 Å. The Ag(2)-O(3) bond length is 2.21 Å. C(1) is bonded in a distorted water-like geometry to one P(1), one H(1), and one H(2) atom. The C(1)-P(1) bond length is 1.82 Å. The C(1)-H(1) bond length is 1.10 Å. The C(1)-H(2) bond length is 1.10 Å. 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 corners with four equivalent Ag(1)O4 tetrahedra. The P(1)-O(1) bond length is 1.54 Å. The P(1)-O(2) bond length is 1.56 Å. The P(1)-O(3) bond length is 1.55 Å. There are two inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one C(1) atom. In the second H site, H(2) is bonded in a single-bond geometry to one C(1) atom. There are three inequivalent O sites. In the first O site, O(3) is bonded in a 3-coordinate geometry to one Ag(1), one Ag(2), and one P(1) atom. In the second O site, O(1) is bonded in a distorted single-bond geometry to one Ag(2), two equivalent Ag(1), and one P(1) atom. In the third O site, O(2) is bonded in a distorted trigonal non-coplanar geometry to one Ag(1), one Ag(2), and one P(1) atom. Linkers: 2 [O]P([O])(=O)CCP([O])([O])=O. Metal clusters: 8 [Ag]. The MOF has largest included sphere 1.39 A, density 4.74 g/cm3, surface area 1159.52 m2/g, accessible volume 0.02 cm3/g