The Redox Chemistry of (N1-[3-(2-aminoethylimino)-1,1-dimethylbutyl]ethane-1,2-diamine)nickel(II) Perchlorate, NiIIL1(ClO4)2, in Aqueous Solutions –A Pulse Radiolytic and an Electrochemical Study

The ligand (N¹-[3-(2-aminoethylimino)-1,1-dimethylbutyl]-ethane- 1,2-diamine), L¹, induces a high ligand field on the central Ni ^II ion. Thus it is relatively easy to oxidize (Ni^IIL ¹)²⁺. However, the kinetic stability of the Ni ^IIIL¹ complexes is considerably lower than that of their analogous macrocyclic complexes. This difference in stabilities is attributed to the less rigid ligand framework, which facilitates the oxidation of ligand.