CHZnC4PNH4O3Cl crystallizes in the monoclinic C2/c space group. The structure consists of eight 02329_fluka molecules inside a ZnC4PNH4O3Cl framework. In the ZnC4PNH4O3Cl framework, Zn(1) is bonded to one O(1), one O(2), one O(3), and one Cl(1) atom to form ZnClO3 tetrahedra that share corners with three equivalent P(1)CO3 tetrahedra. The Zn(1)-O(1) bond length is 1.96 Å. The Zn(1)-O(2) bond length is 1.96 Å. The Zn(1)-O(3) bond length is 2.00 Å. The Zn(1)-Cl(1) bond length is 2.21 Å. There are four inequivalent C sites. In the first C site, C(3) is bonded in a distorted single-bond geometry to one C(2) and one H(3) atom. The C(3)-C(2) bond length is 1.40 Å. The C(3)-H(3) bond length is 1.09 Å. In the second C site, C(5) is bonded in a distorted bent 120 degrees geometry to one N(1) and one H(5) atom. The C(5)-N(1) bond length is 1.35 Å. The C(5)-H(5) bond length is 1.09 Å. In the third C site, C(1) is bonded in a distorted trigonal planar geometry to one C(2), one N(1), and one H(2) atom. The C(1)-C(2) bond length is 1.39 Å. The C(1)-N(1) bond length is 1.34 Å. The C(1)-H(2) bond length is 1.09 Å. In the fourth 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)-P(1) bond length is 1.82 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 corners with three equivalent Zn(1)ClO3 tetrahedra. The P(1)-O(1) bond length is 1.52 Å. The P(1)-O(2) bond length is 1.53 Å. The P(1)-O(3) bond length is 1.55 Å. N(1) is bonded in a trigonal planar geometry to one C(1), one C(5), and one H(1) atom. The N(1)-H(1) bond length is 1.06 Å. There are four inequivalent H sites. In the first H site, H(5) is bonded in a single-bond geometry to one C(5) atom. In the second H site, H(1) is bonded in a linear geometry to one N(1) and one O(3) atom. The H(1)-O(3) bond length is 1.59 Å. In the third H site, H(2) is bonded in a single-bond geometry to one C(1) atom. In the fourth H site, H(3) is bonded in a single-bond geometry to one C(3) atom. There are three inequivalent O sites. In the first O site, O(3) is bonded in a trigonal planar geometry to one Zn(1), one P(1), and one H(1) atom. In the second O site, O(1) is bonded in a distorted bent 150 degrees geometry to one Zn(1) and one P(1) atom. In the third O site, O(2) is bonded in a bent 120 degrees geometry to one Zn(1) and one P(1) atom. Cl(1) is bonded in a single-bond geometry to one Zn(1) atom. Linkers: 3 [O]P([O])(=O)C1=CC=CN[CH]1 ,1 [O]P([O])(=O)C1=CN[CH]C=C1. Metal clusters: 4 [Zn]. The MOF has largest included sphere 3.00 A, density 1.92 g/cm3, surface area 3776.68 m2/g, accessible volume 0.18 cm3/g