| Abstract: | A series of 3,6‐bis(4‐triazolyl)pyridazines equipped with terminal phenyl substituents with varying degree of fluorination were synthesized by using the facile copper‐catalyzed azide–alkyne cycloaddition and their structures were thoroughly investigated in the gas phase, in solution, and in the solid state by employing DFT calculations, NMR spectroscopy, and single‐crystal X‐ray diffraction, respectively. On the molecular level, their structure is governed by the strong preference of the triazole‐pyridazine linkages for the anti ‐conformation. The supramolecular organization of the molecules in the crystalline solid is controlled by π‐stacking, C−H⋅⋅⋅π as well as C−F⋅⋅⋅H interactions. The latter can conveniently be tuned by the number and position of fluorine substituents in the terminal phenyl units, giving rise to either herringbone‐like, 1D or 2D lamellar packing. Electrochemistry and optical spectroscopy of all compounds suggest that they might find use as electron‐transporting/hole‐blocking materials in organic electronics. |
