Fig. 7

Cyclic voltammograms of the ligand HL (a) and its Ni (II) (b), Co (II) (c) and Cd (II) (d) complexes at different scan rate 50–500 mV s−1.

Cyclic voltammograms of the ligand HL (a) and its Ni (II) (b), Co (II) (c) and Cd (II) (d) complexes at different scan rate 50–500 mV s−1.