Copper(II) and cadmium(II) complexes of mono-condensed N,O- or N,N,O-Donor ligands: synthesis, crystal structures, and antibacterial activity

Abstract

Three new copper(II) and cadmium(II) complexes, [Cu(L¹)₂] (1), [CuL²(N₃)] (2), and [Cd(L³)₂] (3), where L¹ = 2-bromo-4-chloro-6-cyclohexylaminomethylphenolate, L² = 2-bromo-4-chloro-6-[(2-morpholin-4-ylethylimino)methyl]phenolate, and L³ = 2-bromo-4-chloro-6-[(3-morpholin-4-ylpropylimino)methyl]phenolate, have been prepared and structurally characterized by X-ray crystallography. The Cu atom in complex 1 is in tetrahedrally distorted square planar geometry. The Cu atom in complex 2 is in square planar geometry. The Cd atom in complex 3 is in octahedral geometry. The complexes exhibited effective activities against B. subtilis, S. aureus, and E. coli.

Keywords:

• Schiff base
• reduced Schiff base
• copper complex
• cadmium complex
• crystal structure
• antibacterial activity

Disclosure statement

No potential conflict of interest was reported by the author(s).