A Dinuclear Copper(II) Complex Electrochemically Obtained via the Endogenous Hydroxylation of a Carbamate Schiff Base Ligand: Synthesis, Structure and Catalase Activity

Int J Mol Sci. 2024 Feb 10;25(4):2154. doi: 10.3390/ijms25042154.

Abstract

In the present work, we report a neutral dinuclear copper(II) complex, [Cu2(L1)(OH)], derived from a new [N,O] donor Schiff base ligand L1 that was formed after the endogenous hydroxylation of an initial carbamate Schiff base H2L coordinated with copper ions in an electrochemical cell. The copper(II) complex has been fully characterized using different techniques, including X-ray diffraction. Direct current (DC) magnetic susceptibility measurements were also performed at variable temperatures, showing evidence of antiferromagnetic behavior. Its catalase-like activity was also tested, demonstrating that this activity is affected by temperature.

Keywords: Schiff bases; catalase activity; copper; hydroxylation.

MeSH terms

  • Carbamates
  • Catalase
  • Copper* / chemistry
  • Crystallography, X-Ray
  • Hydroxylation
  • Ligands
  • Schiff Bases* / chemistry

Substances

  • Copper
  • Schiff Bases
  • Ligands
  • Catalase
  • Carbamates