Synthesis and spectral studies of macrocyclic Cu(II) complexes by reaction of various diamines, copper(II) perchlorate and 1,4-bis(2-carboxyaldehyde phenoxy)butane

Abstract

Six macrocyclic complexes, were synthesized by reaction of 1,4-bis(2-carboxyaldehyde phenoxy)butane and various amines and their copper(II) perchlorate complexes were synthesized by template effect reaction of 1,4-bis(2-carboxyaldehyde phenoxy)butane, Cu(ClO₄)₂ · 6H₂O and amines. The metal-to-ligand ratios were found to be 1 : 1. Cu(II) metal complexes are 1 : 2 electrolytes as shown by their molar conductivities (Λ_M) in DMF (dimethyl formamide) at 10⁻³ M. The Cu(II) complexes are proposed to be square planar based on elemental analysis, FT–IR, UV–Vis, magnetic susceptibility measurements, molar conductivity measurements, and mass spectra.

Keywords:

• Macrocyclic Schiff-base complexes
• 1,4-bis(2-carboxyaldehyde phenoxy)butane and Copper(II) complexes

Acknowledgement

We are grateful to TUBITAK Research Found 106T475 (TBAG-HD/208) for the support of this research.