Synthesis and Supramolecular Chemistry of Racemic Dinitrodiphenyldiquinoline Acetic Acid Cocrystal

The V-shape diquinoline 4 was synthesized and the solid-state structure of its acetic acid cocrystal was carefully investigated in term of crystal engineering and supramolecular chemistry. The suitable X-ray cocrystals were obtained by crystallization of diquinoline 4 from acetic acid. The structure adopted acid…pyridine hydrogen-bonded supramolecular heterosynthon in addition to other supramolecular non-covalent host-guest and host-host interactions. No proton- transfer process was detected; no salt formation.