B. Paluchowska et al., DINUCLEAR COPPER(II) COMPLEXES WITH 3-FURANCARBOXYLIC ACID AND 2-THIOPHENCARBOXYLIC ACID, Journal of coordination chemistry (Print), 44(1-2), 1998, pp. 183-192
The structures of Cu(II) 3-furancarboxylate and Cu(II) 2-thiophenate d
enoted hereafter as Cu-3F and Cu-2T, respectively, were determined. Th
e structures are dinuclear, bridged by bidentate ligands. The coordina
tion about copper is square pyramidal. The pKa of the respective acids
is a factor influencing changes in Cu-Cu distances. The differences i
n hydrogen bond patterns and packing are described.