A crystal engineering study copper(II) complexes with 2,4-diamino-6-(4-pyridyl)-1,3,5-triazine (3) and 2-amino-4-phenylamino-6-(4-pyridyl)-1,3,5-triazine (4)

The crystal structures of two newly synthesized ligands based on 2,4,6-triamino-1,3,5-triazine (3 and 4) have been determined and their hydrogen-bonded and pi-pi stacked supramolecular structures have been analysed. Two copper(II) complexes of these ligands (5 and 6) illustrate the formation of metal-ion directed self-assembled superstructures whose networks are markedly modified as a consequence of the introduction of the coordinated metal centres.