The polydentate ligands, 3-(2-aminocyclohexylamino)-2-(2-aminocyclohexyl aminomethyl) propionic acid (L1), 4, 7, 10-triazatridecanedinitrile trihydrochloride (L2), and 2, 2′-(ethane- 1, 2-diyl) bis (methylazanediyl) diethanol (L3) were prepared and their structures investigated by FT-IR, NMR, and MS. The kinetics of complex formation between Cu (II) and L1, L2, and L3 were investigated in acidic aqueous solutions using the stopped-flow ...