Crystal Structure of Adduct 2-Phenyl-imidazo [ 4,5-f ] 1,10-phenanthroline Methanol

The structure of the title adduct comprises a phenanthroline derivative 2‐phenyl‐imidazo[4,5‐/]1,10‐phenanthroline and a methanol. The composition of the crystalline adduct was characterized as C₁₉H₁₂N₄ CH₃OH. It belongs to orthorhombic system, space group Pna²₁ with a = 1.3693(4) nm, b = 2.2988(7) nm, c =0.51338(15) nm, V = 1.6160(8) nm³, Z = 4, and final R₁ = 0.0423, wR₂ = 0.1012. Crystal structure shows that all the 19 carbon atoms and 4 nitrogen atoms are coplanar. The bond length data indicated that a very extensive conjugation system was formed. This conjugation makes the compound being a potentially excellent energy transformer used for luminescent materials.