RETRACTED ARTICLE: Synthesis and electrochemical studies of phenylazo substituted tetraaza macrocyclic complexes of Ni(II)

Abstract

Synthesis and characterization of some phenyl azo substituted tetraaza macrocyclic complexes of Ni(II) are reported. Electrochemical behaviour of these macrocyclic complexes has been examined using polarographic, voltammetric and spectroscopic techniques. These studies show that both the ligand and the metal are electrochemically active. The electrochemical behaviour of the azo function has been shown to occur through a single four-electron process. When a nitro group is also present, the nitro function of the azo moiety is reduced in a six-electron cathodic wave.

Characterisation and cryomagnetic study of a hydrothermally synthesised hydrogen bonded L–M–L type co-ordination polymer

“…A CV scan of 1 in acetonitrile shows one irreversible Ni(III/II) couple at E 1/2 = 0.72 V vs. SCE with E p value of 200 mV, which suggests that the Ni(III) species is unstable and undergoes speedy decomposition. The data obtained correlates well with that of a Ni(II) species [29,30]. Symmetry transformations used to generate equivalent atoms A:…”