Synthesis and characterization of new thiourea derivatives substituted 1,10-phenanthroline and crown ether

New organic compounds that could serve as ligands for metals or in supramolecular assemblies were prepared by combining various amines and isothionates. This resulted in the new thiourea derivatives: 5,6-bis[aminoanilinomethanethione][1,10] phenanthroline (1), 1,2-bis[aminobenzo(15-crown-5)]-15-ylaminomethanethionebenzene (2), 5,6-bis[aminobenzo(15-crown-5)]-15-ylaminomethanethione[1,10]phenanthroline (3), and N-[1,10-phenanthroline]-N`-[[benzo-15-crown-5] yl]thiourea (4). The structures and compositions of the compounds have been confirmed by elemental analyses, UV-vis, FTIR, ¹ H NMR (DMSO-d ₆ ), ¹³ C NMR (DMSO-d ₆ ) and MS spectra.