Crystal structure and Hirshfeld surface analysis of a new mononuclear copper(II) complex: [bis(pyridin-2-yl-κN)amine](formato-κO)(m-hydroxybenzoato-κ2O,O′)copper(II)

Abstract

A new mononuclear copper(II) complex, [Cu(C7H5O3)(HCO2)(C10H9N3)], containing mixed N- and O-donor ligands, 2,2′-dipyridylamine (dpyam) and m-hydroxybenzoate (m-OHbenz), has been obtained from a solvent mixture. The coordination environment of the CuII ion is distorted square-pyramidal with a [N2O3] coordination set originating from the chelating dpyam and m-OHbenz ligands in the basal plane and the O atom of a formato ligand at the apical position. The crystal structure of the title complex is stabilized by N—H...O, O—H...O, C—H...O hydrogen-bonding, π–π and C—H...π intermolecular interactions, which were quantified by Hirshfeld surface analysis.

Keywords

• copper(ii)
• ternary complex
• m-hydroxybenzoate
• 2,2′-dipyridylamine
• crystal structure
• hirshfeld surface analysis