Synthesis, characterization, crystal structure, and catalytic activity of an end-on azido-bridged polymeric copper(ii) complex derived from 4-methyl-2-[(3-methylaminopropylimino)methyl]phenol

ABSTRACT

An end-on azido-bridged polymeric copper(II) complex, [CuL(μ_1,1-N₃)]_n (HL = 4-methyl-2-[(3-methylaminopropylimino)methyl]phenol), was synthesized and characterized by elemental analysis, IR spectra, and single-crystal X-ray structure diffraction. X-ray structural analysis indicates that the complex crystallizes in the monoclinic space group Cc, with unit cell dimensions a = 13.375(1) Å, b = 16.922(2) Å, c = 6.7666(6) Å, β = 117.967(2)°, V = 1352.6(2) ų, and Z = 4. The Cu atom is in square-pyramidal coordination, with the phenolate oxygen, imino nitrogen, and amino nitrogen of the Schiff base ligand, and one azido nitrogen defining the basal plane, and with an another azido nitrogen occupying the apical position. The complex shows effective catalytic property on the oxidation of benzyl alcohol derivatives to carbonyl compounds by using hydrogen peroxide as an oxidant.

KEYWORDS:

• Polymeric structure
• crystal structure
• copper
• Schiff base
• catalytic property

Acknowledgments

The author acknowledges the Experimental Center of the Linyi Normal University for supporting this work.