Poly[[[diaquasodium]-μ3-5-carboxy-2-ethyl-1H-imidazole-4-carboxylato-κ4N3,O4:O5:O5] monohydrate]

Abstract

In the title complex, {[Na(C7H7N2O4)(H2O)2]·H2O}n, the NaI atom exhibits a distorted octahedral geometry and is six-coordinated in an NO5 environment. The equatorial plane is defined by three O atoms and one N atom from two distinct 5-carboxy-2-ethyl-1H-imidazole-4-carboxylate (H2EIDC) ligands and one coordinated water molecule, and the apical sites are occupied by one carboxyl O atom from one H2EIDC ligand and one O atom from the other coordinated water molecule. The NaI atoms are linked by H2EIDC ligands, generating an infinite double chain along the a axis. These chains are further connected via O—H...O and N—H...O hydrogen bonds into a three-dimensional supramolecular network.