Magnetic measurements, UV–Vis spectroscopy, and XAS of dinuclear nickel(II) complexes of bistetraazamacrocycles

Abstract The nickel(II) complexes of N , N ′-xylylenebis(tetraazamacrocycles) have been isolated. The description of these dinuclear bismacrocyclic complexes have been carried out by means of magnetic measurements and spectrophotometric experiments (UV–Vis). The metal environment and the ligand shape have been specified by XANES and EXAFS experiments, since attempts to obtain suitable crystals failed.