A Cyclic Hexacopper(II) Comples with 1,2,4-Triazole and Hydroxo as Bridging Ligands

A large phenol- and polyether chain-based macrocycle H2L possessing four pyridylmethyl groups as pendant donors was prepared and its ability to encapsulate four divalent metal ions [Ni(II), Mn(II), and Zn(II)] was confirmed by IR and NMR spectroscopy and X-ray crystallography.