A series of mono-and difluorinated benzanilides have been synthesized and characterized to unravel the importance of interactions involving organic fluorine. The effect of fluorine substitution on the molecular conformation and the solid-state organization of the molecules in the crystalline lattice have been discussed in terms of changes in molecular conformation and the supramolecular aggregation. It is noteworthy that the meta-and para-isomers (mono and difluorinated) are isostructural, with

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... the ortho-isomers possessing minor conformational variations. Furthermore, the molecular conformation as obtained by theoretical DFT calculations is different from the solid-state conformation highlighting the importance of co-operative features brought by N-H ... O and C-H ... O hydrogen bonds, along with weak intermolecular interactions involving organic fluorine and aromatic C-H ... p contacts in the solid state.