To further investigate the effect of the C-alkyl substituents of
the macrocyclic ring, we report the structures, spectroscopic, thermogravimetric and cyclic voltammetric properties of the octahedral nickel(II) complexes [Ni(L3)]Cl22H2O(1), [Ni(L3)(NO3)2](2)
and [Ni(L3)(N3)2