The crystal structures of ten supramolecular salts of benzylamine and organic acids

This article studies the benzylamine based supramolecular adducts in ten crystalline solids, where the acids have been integrated. Addition of the benzylamine to the solution of organic acid makes the corresponding supramolecular assemblies. All the compounds crystallize as their organic salts with the acidic H moved to the NH2 of the benzylamine and they have been featured via IR, mp, EA and XRD in detail. The key driving force is attributed to the classical H-bonds from benzylamine and the acids. The other extensive non-covalent interactions also play great functions in space association with the molecular counter partners in relevant crystals. The homo, hetero supramolecular synthons or both were built at these salts, and the characteristic R42(8), R43(10) and R44(12) graph sets have been frequently established in the salts due to the H-bonds and non-covalent associations. For the synergistic effects of the classical H-bonds and the various non-covalent bonds, these salts adopted 1D/2D/3D arrangements.