2,6-Bis[(2-hydr­oxy-3-methoxy­benzyl­idene)hydrazinocarbon­yl]pyridine monohydrate

In the title compound, C₂₃H₁₉N₅O₆·H₂O, the two components are linked into complex chains by a combination of two independent O—H...O and two independent N—H...O hydrogen bonds. The complex chains are linked into a two-dimensional sheet network via π–π stacking inter­actions and C—H...O hydrogen bonds.

Poly[bis­[aqua­neodymium(III)]-[mu]₂-oxalato-di-[mu]₄-succinato]

In the title compound, [Nd₂(C₄H₄O₄)₂(C₂O₄)(H₂O)₂]_n, the flexible succinate anion assumes the gauche conformation and bridges the nine-coordinate Nd atoms to generate two-dimensional layers parallel to (010). The coordination polymer layers are linked into a three-dimensional framework by the rigid oxalate ligands. The oxalate ions are located on a center of inversion.