Control of copper(II) coordination geometry via supramolecular assembly of ligands in the solid state

Abstract

The high density and strength of intermolecular hydrogen bonding between amine and sulfonamide units in the complex [Cu(Tstn)₂] [TstnH = N-(3-aminopropyl)-4-methylbenzenesulfonamide] give rise to energetically unfavourable coordination geometries at the copper centres in the solid state, in a manner analogous to the entatic state forced on metal active sites in metalloenzymes through secondary and tertiary protein structures.