Organic Salts of -Coumaric Acid and -Ferulic Acid with Aminopicolines.

-Coumaric acid (CA) and -ferulic acid (TFA) were co-crystallised with 2-amino-4-picoline (2A4MP) and 2-amino-6-picoline (2A6MP) producing organic salts of (CA)(2A4MP) (), (CA )(2A6MP) () and (TFA )(2A4MP)·( 3 2 HO) (). For salt , water was included in the crystal structure fulfilling a bridging role. CA formed a 1:1 salt with 2A4MP (' = 1) and a 4:4 salt with 2A6MP (' = 4). The thermal stability of the salts was determined using differential scanning calorimetry (DSC). Salt had the highest thermal stability followed by salt and salt . The salts were also characterised using Fourier transform infrared (FTIR) spectroscopy. Hirshfeld surface analysis was used to study the different intermolecular interactions in the three salts. Solvent-assisted grinding was also investigated in attempts to reproduce the salts.