KPtC2PN2H12(O2Cl)2 crystallizes in the triclinic P-1 space group. K(1) is bonded in a 11-coordinate geometry to one H(10), one H(12), one H(7), one O(1), one O(2), one O(3), two equivalent O(4), one Cl(1), and two equivalent Cl(2) atoms. The K(1)-H(10) bond length is 2.76 Å. The K(1)-H(12) bond length is 2.75 Å. The K(1)-H(7) bond length is 2.77 Å. The K(1)-O(1) bond length is 2.75 Å. The K(1)-O(2) bond length is 3.06 Å. The K(1)-O(3) bond length is 2.79 Å. There is one shorter (2.86 Å) and one longer (3.02 Å) K(1)-O(4) bond length. The K(1)-Cl(1) bond length is 3.12 Å. There is one shorter (3.11 Å) and one longer (3.18 Å) K(1)-Cl(2) bond length. Pt(1) is bonded in a square co-planar geometry to one N(1), one N(2), one Cl(1), and one Cl(2) atom. The Pt(1)-N(1) bond length is 2.06 Å. The Pt(1)-N(2) bond length is 2.06 Å. The Pt(1)-Cl(1) bond length is 2.33 Å. The Pt(1)-Cl(2) bond length is 2.33 Å. There are two inequivalent C sites. In the first C site, C(1) is bonded to one P(1), one N(1), one H(1), and one H(2) atom to form distorted corner-sharing CPH2N tetrahedra. The C(1)-P(1) bond length is 1.82 Å. The C(1)-N(1) bond length is 1.48 Å. The C(1)-H(1) bond length is 1.10 Å. The C(1)-H(2) bond length is 1.10 Å. In the second C site, C(2) is bonded to one P(1), one N(2), one H(3), and one H(4) atom to form distorted corner-sharing CPH2N tetrahedra. The C(2)-P(1) bond length is 1.82 Å. The C(2)-N(2) bond length is 1.48 Å. The C(2)-H(3) bond length is 1.10 Å. The C(2)-H(4) bond length is 1.10 Å. P(1) is bonded in a distorted tetrahedral geometry to one C(1), one C(2), one O(1), and one O(2) atom. The P(1)-O(1) bond length is 1.52 Å. The P(1)-O(2) bond length is 1.53 Å. There are two inequivalent N sites. In the first N site, N(1) is bonded in a 4-coordinate geometry to one Pt(1), one C(1), one H(5), and one H(6) atom. The N(1)-H(5) bond length is 1.03 Å. The N(1)-H(6) bond length is 1.05 Å. In the second N site, N(2) is bonded in a 4-coordinate geometry to one Pt(1), one C(2), one H(8), and one H(9) atom. The N(2)-H(8) bond length is 1.03 Å. The N(2)-H(9) bond length is 1.04 Å. There are twelve 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. In the third H site, H(3) is bonded in a single-bond geometry to one C(2) atom. 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 N(1) atom. In the sixth H site, H(6) is bonded in a single-bond geometry to one N(1) atom. In the seventh H site, H(7) is bonded in a single-bond geometry to one K(1) and one O(4) atom. The H(7)-O(4) bond length is 1.00 Å. In the eighth H site, H(8) is bonded in a single-bond geometry to one N(2) atom. In the ninth H site, H(9) is bonded in a single-bond geometry to one N(2) atom. In the tenth H site, H(10) is bonded in a single-bond geometry to one K(1) and one O(3) atom. The H(10)-O(3) bond length is 0.99 Å. In the eleventh H site, H(11) is bonded in a single-bond geometry to one O(3) atom. The H(11)-O(3) bond length is 0.99 Å. In the twelfth H site, H(12) is bonded in a single-bond geometry to one K(1) and one O(4) atom. The H(12)-O(4) bond length is 0.99 Å. There are four inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one K(1) and one P(1) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to one K(1) and one P(1) atom. In the third O site, O(3) is bonded in a water-like geometry to one K(1), one H(10), and one H(11) atom. In the fourth O site, O(4) is bonded in a water-like geometry to two equivalent K(1), one H(12), and one H(7) atom. There are two inequivalent Cl sites. In the first Cl site, Cl(1) is bonded in a water-like geometry to one K(1) and one Pt(1) atom. In the second Cl site, Cl(2) is bonded in a distorted trigonal non-coplanar geometry to two equivalent K(1) and one Pt(1) atom. Linkers: 2 NCP([O])(=O)CN ,2 O. Metal clusters: 2 [K] ,2 [Pt]. The MOF has largest included sphere 1.85 A, density 2.77 g/cm3, surface area 1842.52 m2/g, accessible volume 0.05 cm3/g