AgPH4(CO)3 crystallizes in the triclinic P-1 space group. There are three inequivalent Ag sites. In the first Ag site, Ag(1) is bonded in a 3-coordinate geometry to one O(1), one O(6), and one O(8) atom. The Ag(1)-O(1) bond length is 2.52 Å. The Ag(1)-O(6) bond length is 2.40 Å. The Ag(1)-O(8) bond length is 2.26 Å. In the second Ag site, Ag(2) is bonded to one O(3), one O(4), one O(5), and one O(9) atom to form distorted AgO4 trigonal pyramids that share  a cornercorner with one P(1)CO3 tetrahedra,  a cornercorner with one P(3)CO3 tetrahedra, and corners with two equivalent P(2)CO3 tetrahedra. The Ag(2)-O(3) bond length is 2.34 Å. The Ag(2)-O(4) bond length is 2.56 Å. The Ag(2)-O(5) bond length is 2.39 Å. The Ag(2)-O(9) bond length is 2.27 Å. In the third Ag site, Ag(3) is bonded in a 4-coordinate geometry to one O(6), one O(8), and two equivalent O(3) atoms. The Ag(3)-O(6) bond length is 2.27 Å. The Ag(3)-O(8) bond length is 2.44 Å. There is one shorter (2.26 Å) and one longer (2.70 Å) Ag(3)-O(3) bond length. There are nine inequivalent C sites. In the first C site, C(1) is bonded in a trigonal planar geometry to one C(2), one C(6), and one C(7) atom. The C(1)-C(2) bond length is 1.40 Å. The C(1)-C(6) bond length is 1.40 Å. The C(1)-C(7) bond length is 1.50 Å. In the second C site, C(2) is bonded in a distorted single-bond geometry to one C(1), one C(3), and one H(4) atom. The C(2)-C(3) bond length is 1.40 Å. The C(2)-H(4) bond length is 1.09 Å. In the third C site, C(3) is bonded in a trigonal planar geometry to one C(2), one C(4), and one C(8) atom. The C(3)-C(4) bond length is 1.40 Å. The C(3)-C(8) bond length is 1.50 Å. In the fourth C site, C(4) is bonded in a distorted single-bond geometry to one C(3), one C(5), and one H(5) atom. The C(4)-C(5) bond length is 1.40 Å. The C(4)-H(5) bond length is 1.09 Å. In the fifth C site, C(5) is bonded in a trigonal planar geometry to one C(4), one C(6), and one C(9) atom. The C(5)-C(6) bond length is 1.40 Å. The C(5)-C(9) bond length is 1.50 Å. In the sixth C site, C(6) is bonded in a distorted single-bond geometry to one C(1), one C(5), and one H(6) atom. The C(6)-H(6) bond length is 1.09 Å. In the seventh C site, C(7) is bonded in a distorted water-like geometry to one C(1), one P(1), one H(7), and one H(8) atom. The C(7)-P(1) bond length is 1.82 Å. The C(7)-H(7) bond length is 1.10 Å. The C(7)-H(8) bond length is 1.10 Å. In the eighth C site, C(8) is bonded in a distorted water-like geometry to one C(3), one P(2), one H(10), and one H(9) atom. The C(8)-P(2) bond length is 1.81 Å. The C(8)-H(10) bond length is 1.10 Å. The C(8)-H(9) bond length is 1.10 Å. In the ninth C site, C(9) is bonded in a distorted water-like geometry to one C(5), one P(3), one H(11), and one H(12) atom. The C(9)-P(3) bond length is 1.82 Å. The C(9)-H(11) bond length is 1.10 Å. The C(9)-H(12) bond length is 1.10 Å. There are three inequivalent P sites. In the first P site, P(1) is bonded to one C(7), one O(1), one O(2), and one O(3) atom to form PCO3 tetrahedra that share  a cornercorner with one Ag(2)O4 trigonal pyramid. The P(1)-O(1) bond length is 1.52 Å. The P(1)-O(2) bond length is 1.59 Å. The P(1)-O(3) bond length is 1.54 Å. In the second P site, P(2) is bonded to one C(8), one O(4), one O(5), and one O(6) atom to form PCO3 tetrahedra that share corners with two equivalent Ag(2)O4 trigonal pyramids. The P(2)-O(4) bond length is 1.59 Å. The P(2)-O(5) bond length is 1.53 Å. The P(2)-O(6) bond length is 1.53 Å. In the third P site, P(3) is bonded to one C(9), one O(7), one O(8), and one O(9) atom to form PCO3 tetrahedra that share  a cornercorner with one Ag(2)O4 trigonal pyramid. The P(3)-O(7) bond length is 1.58 Å. The P(3)-O(8) bond length is 1.53 Å. The P(3)-O(9) bond length is 1.54 Å. There are twelve inequivalent H sites. In the first H site, H(1) is bonded in a linear geometry to one O(2) and one O(9) atom. The H(1)-O(2) bond length is 1.04 Å. The H(1)-O(9) bond length is 1.50 Å. In the second H site, H(2) is bonded in a linear geometry to one O(1) and one O(4) atom. The H(2)-O(1) bond length is 1.45 Å. The H(2)-O(4) bond length is 1.05 Å. In the third H site, H(3) is bonded in a linear geometry to one O(5) and one O(7) atom. The H(3)-O(5) bond length is 1.48 Å. The H(3)-O(7) bond length is 1.04 Å. In the fourth H site, H(4) is bonded in a single-bond geometry to one C(2) atom. In the fifth H site, H(5) is bonded in a single-bond geometry to one C(4) atom. In the sixth H site, H(6) is bonded in a single-bond geometry to one C(6) atom. In the seventh H site, H(7) is bonded in a single-bond geometry to one C(7) atom. In the eighth H site, H(8) is bonded in a single-bond geometry to one C(7) atom. In the ninth H site, H(9) is bonded in a single-bond geometry to one C(8) atom. In the tenth H site, H(10) is bonded in a single-bond geometry to one C(8) atom. In the eleventh H site, H(11) is bonded in a single-bond geometry to one C(9) atom. In the twelfth H site, H(12) is bonded in a single-bond geometry to one C(9) atom. There are nine inequivalent O sites. In the first O site, O(1) is bonded in a 2-coordinate geometry to one Ag(1), one P(1), and one H(2) atom. In the second O site, O(2) is bonded in a bent 120 degrees geometry to one P(1) and one H(1) atom. In the third O site, O(3) is bonded in a 4-coordinate geometry to one Ag(2), two equivalent Ag(3), and one P(1) atom. In the fourth O site, O(4) is bonded in a 2-coordinate geometry to one Ag(2), one P(2), and one H(2) atom. In the fifth O site, O(5) is bonded in a distorted bent 120 degrees geometry to one Ag(2), one P(2), and one H(3) atom. In the sixth O site, O(6) is bonded in a 3-coordinate geometry to one Ag(1), one Ag(3), and one P(2) atom. In the seventh O site, O(7) is bonded in a water-like geometry to one P(3) and one H(3) atom. In the eighth O site, O(8) is bonded in a 3-coordinate geometry to one Ag(1), one Ag(3), and one P(3) atom. In the ninth O site, O(9) is bonded in a distorted trigonal planar geometry to one Ag(2), one P(3), and one H(1) atom. Linkers: 2 [O]P(=O)(O)Cc1cc(CP([O])(=O)O)cc(CP([O])(=O)O)c1. Metal clusters: 6 [Ag]. The MOF has largest included sphere 1.75 A, density 3.05 g/cm3, surface area 2119.80 m2/g, accessible volume 0.05 cm3/g