Synthesis and Coordination Properties of Pendant Arm Dipyridylmethane Derivatives

Article abstract of DOI:10.1021/jo00087a012

Dipyridylmethane dicarboxylic acids with pendant arms containing pyridine groups were prepared.Cu(II) was shown to form square pyramidal complexes with the ligands.Depending on the structure of the pendant arm, the apical position was occupied either by a water molecule or by a pyridyl group from the same molecule or from a neighboring molecule.The reason for the different behavior of the ligands is suggested to be due to stereoelectronically induced conformational preferences of the ligands.