Synthesis and structural investigation of 6,13-dichloroacylated tetraaza[14]annulene nickel(II) complexes

The reactions of the tetraaza[14]annulene Ni(II) complex (1) with chloroacyl chlorides afforded the 6,13-dichloroacylated complexes 2 and 3. By a demetallation procedure the metal free ligand of 2 was obtained. The crystal structure of the adduct 2·C6H5CH3 has been determined by the single-crystal X-ray diffraction method.