Abstract
Ni(ii) complexes with (±)-trans-N,N′-bis(salicylidene)-1,2-cyclohexanediamine ([Ni(salen)]), and its methyl ([Ni(salen(Me))]) andtert-butyl ([Ni(salen(Bu))]) derivatives have been synthesized.
Highlights
The mechanism of anodic electropolymerization is a subject of discussion among scientists
The analysis of the film spectra was done on the basis of comparison of the FTIR ATR spectrum taken for the selected film with the FTIR spectrum of the corresponding complex compound
The anodic electropolymerization method applied to [Ni(salcn)], [Ni(salcn(Me))] and [Ni(salcn(Bu))] complexes yields three yellowcoloured electroactive polymer films. In these polymers FTIR and FTIR ATR measurements showed the existence of phenyl–phenyl type bonds
Summary
The mechanism of anodic electropolymerization is a subject of discussion among scientists. On the other hand Popeko and Timonov et al.[21,22] and Dahm et al.[17] suggested that the Ni(II)-salen type complex oxidation mechanism is based on the metal ion. They found that at the first step, the oxidation of the complexes leads to a Ni(III)–phenolate complex. According to their studies the oxidation process is possible due to the donor–acceptor interaction between the monomeric ligand and the oxidised metal centre of the other monomer Such types of interactions result in stack polymer formation. The whole investigated compounds[14,15,16,17,18,19,20,21,22] consisted of complexes of salen and its derivatives which differ in substituents within the ethylene imine bridge as well as in the phenolate moieties
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