Crystal structure and Hirshfeld surface analysis of 4-[4-(1H-benzo[d]imidazol-2-yl)phen-oxy]phthalo-nitrile monohydrate.

In the title compound, C21H12N4O·H2O, the five-membered ring is essentially planar with a maximum deviation of 0.004 (2) Å. An N-H⋯O hydrogen bond connects the organic and water mol-ecules. In the crystal, O-H⋯N hydrogen bonds link mol-ecules into a two-dimensional network parallel to (100). Hirshfeld surface analyses and two-dimensional fingerprint plots were used to qu-antify the inter-molecular inter-actions present in the crystal, indicating that the most important contributions for the crystal packing are from H⋯H (28.7%), C⋯H/H⋯C (27.1%), N⋯H/H⋯N (26.4%), C⋯N/N⋯C (6.1%), O⋯H/H⋯O (3.7%) and C⋯C (6.0%) inter-actions.