Investigation on silver complexes of novel 1,2,3-triazole linked crown ethers by NMR analysis

The novel derivatives of 1,2,3-triazole linked crown ethers were investigated towards silver(I) ion coordination. The NMR measurements in deuterated methanol in different ratios of ligand and silver cation were studied. The experiments were performed in order to examine the way of binding Ag(I) ion by the selected ligands. The results are presented for complexes with the Ag: L stoichiometry 0.5:1, 1:1 and 2:1, respectively. Depending on the type of crown ether moiety incorporated into the macrocyclic skeleton, interesting differences in the mode of stepwise coordination of the ion were noticed. Graphical Abstract The novel derivatives of 1,2,3-triazole-linked crown ethers were investigated towards silver(I) ion coordination. The presented results show different modes of binding of the metal ion depending on the crown ether moiety incorporated into the macrocyclic skeleton.