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The title pyridazin-3(2 H )-one derivative, C 25 H 19 FN 2 O 2 , crystallizes with two independent mol-ecules ( A and B ) in the asymmetric unit. In mol-ecule A , the 4-fluoro-phenyl ring, the benzyl ring and the phenyl ring are inclined to the central pyridazine ring by 86.54 (11), 3.70 (9) and 84.857 (13)°, respectively. In mol-ecule B , the corresponding dihedral angles are 86.80 (9), 10.47 (8) and 82.01 (10)°, respectively. In the crystal, the A mol-ecules are linked by pairs of C-H⋯F hydrogen bonds, forming inversion dimers with an R  2  2 (28) ring motif. The dimers are linked by C-H⋯O hydrogen bonds and a C-H⋯π inter-action, forming columns stacking along the a -axis direction. The B mol-ecules are linked to each other in a similar manner and form columns separating the columns of A mol-ecules.

Crystal structure and the DFT and MEP study of 4-benzyl-2-[2-(4-fluorophenyl)-2-oxoethyl]-6-phenylpyridazin-3(2H)-one