RESUMEN
The title complex, H(3)O(+)·NH(3)C(CH(3))(PO(3)H)(2) (-), contains a hydroxonium ion and an NH(3)C(CH(3))(PO(3)H)(2) (-) anion. The three H atoms of H(3)O(+) form a pseudo-tetra-hedron by being distributed over four positions with occupation factors of 0.75. Multiple N-Hâ¯O and O-Hâ¯O hydrogen bonds in the crystal structure form an intricate three-dimensional supra-molecular network.
RESUMEN
The title complex, {[Cd(C(7)H(3)NO(4))(C(12)H(8)N(2))(H(2)O)]·2H(2)O}(n), is a one-dimensional coordination polymer, wherein the Cd atom is seven-coordinated by two 1,10-phenanthroline N atoms, one N and three O atoms from two different pyridine-2,3-dicarboxyl-ate ligands, and one water mol-ecule. It is further extended to a two-dimensional layer structure by hydrogen bonds and π-π stacking inter-actions [centroid-centroid distances of 3.560â (2) and 3.666â (2)â Å]. There is a C4 water chain in the structure whose repeat unit contains four water mol-ecules with Oâ¯O distances in the range 2.748â (3)-2.795â (4)â Å. One of the two H atoms of each water of hydration is statistically distributed over two positions with equal occupancy.