1,4-Bis[1-(pyridin-4-ylmethyl)-1H-benzimidazol-2-yl]butane dihydrate

The title compound, C30H28N6 center dot 2H(2)O, is an example of a new N-donor neutral organic ligand. The asymmetric unit consists of two half-molecules (organic) and two water molecules; each independent organic molecule is centrosymmetric. The water molecules are linked by O-H center dot center dot center dot O hydrogen bonds, forming infinite chains stretching parallel to the a axis. These water chains also link the molecules of the title compound via C-H center dot center dot center dot O and O-H center dot center dot center dot N hydrogen bonds, generating a two-dimensional supramolecular layer-like structure.