DINUCLEAR COPPER(II) COMPLEXES WITH 3-FURANCARBOXYLIC ACID AND 2-THIOPHENCARBOXYLIC ACID

Abstract

The structures of Cu(II) 3-furancarboxylate and Cu(II) 2-thiophenate denoted hereafter as Cu-3F and Cu-2T, respectively, were determined. The structures are dinuclear, bridged by bidentate ligands. The coordination about copper is square pyramidal. The pKa of the respective acids is a factor influencing changes in Cu-Cu distances. The differences in hydrogen bond patterns and packing are described.