Synthesis and structural study of bis-perfluoropyridyl bridged by 1,4 and 1,2 dihydropyridine

► Synthesis of an interesting bis-perfluoropyridyl bridge by 1,2 and 1,4 dihydropyridine systems from pentafluoropyridine. ► Structural study of those bis-perfluoropyridyl compounds by X-ray crystallography. ► Investigation of intermolecular C-H⋯F and C-H⋯N hydrogen bonds link neighbouring molecules to each other.► Investigation of C-F⋯π interaction in crystal packing.