Crystal structure, Hirshfeld surface analysis and DFT study of (5E,5′E,6Z,6′Z)-6,6′-[ethane-1,2-diyl­bis(aza­nylyl­idene)]bis­{5-[2-(4-fluoro­phen­yl)hydra­zono]-3,3-di­methyl­cyclo­hexa­none} 2.5-hydrate

The title compound, C(30)H(34)F(2)N(6)O(2)·2.5H(2)O, was obtained by condensation of 2-[2-(4-fluoro­phen­yl)hydrazono]-5,5-di­methyl­cyclo­hexan-1,3-dione with ethyl­enedi­amine in ethanol and crystallized as a 1:2.5 hydrate in space group C2/c. The two independent mol­ecules, with approximate crystallographic C (2) symmetries, have different conformations and packing environments, are stabilized by intra­molecular N—H⋯N hydrogen bonds and linked by O—H⋯O hydrogen bonds involving the water mol­ecules. A Hirshfeld surface analysis showed that H⋯H contacts make by far the largest (48–50%) contribution to the crystal packing. From DFT calculations, the LUMO–HOMO energy gap of the mol­ecule is 0.827 eV.