Structural insights into salts and a salt polymorph of nitrogen containing small organic molecules

A series of organic salts and a salt polymorph have been synthesized with the aim to evaluate their propensity of salt formation containing nitrogenous organic molecules and complementary carboxylic acids. The salts were obtained by solvent drop grinding method (SAG) and their crystal structure was obtained by single crystal X-ray diffraction method. The crystal packing for all salts is primarily stabilized via N+-H···O−, N+-H···O, NH⋯O−, OH⋯O−, OH⋯O, N+-H···N and NH⋯N hydrogen bonds. The thermal stability was characterized by differential scanning calorimetry and the phase of the synthesized salt was confirmed by PXRD.208