Electrochemical and spectroscopic properties of 1:2 Ni complexes of 1,3-substitued (CH3, OCH3) phenyl-5-phenylformazans

Spectral and electrochemical behavior of 1-[(NO2, COOH)-substituted phenyl]-3,5-diphenylformazans

“…Also, two cathodic peaks (E red1 and E red2 ) which correspond to the opposite of oxidation were observed at -426.0 and -815.1 mV (Fig. 2a) [19]. As seen from Fig.…”

“…Most of the applications of formazans are based on their spectral and electrochemical properties. Because of this, we focused our studies on the spectral and electrochemical behaviors of various substituted formazans [17][18][19][20][21]. In our previous work, cyclic voltammetric and chronoamperometric behaviors of 3-(m-, p-nitrophenyl)-1,5-diphenylformazans were investigated over the potential range of -2 to 0 V to negative potentials, and their electrochemical behaviors were investigated in cathodic region [17].…”

Formazanate coordination compounds: synthesis, reactivity, and applications

“…37,38 40 Tezcan and co-workers reported related Ni complexes, and studied the effect of ligand substituents on the spectroscopic and electrochemical properties. 43 Zaidman et al prepared a series of bis(formazanate) nickel complexes from formazans with various (heteroaromatic) substituents or linked bis-formazan scaffolds, and studied their catalytic activity in ethylene oligomerization (for representative structures 38/39, see Scheme 13b). 44 Upon treatment with AlEtCl 2 , the complexes showed some catalytic activity towards the formation of a mixture of butenes, hexenes and octenes, but also resulted in substantial amounts of (poly)ethyltoluenes by Friedel-Crafts alkylation of the toluene solvent with ethylene.…”

Frontiers of Formazans Chemistry: A Review

“…[67][68][69] Tezcan and his co-workers [70][71][72][73][74][75] synthesized metal complexes of formazans with iron and investigated their structural properties, magnetic properties and stability constants depending upon their pH value.…”

“…Ni 2+ complexes of formazans were prepared and characterized by Tezcan et al [70][71][72] and the electrochemical investigations were carried out using cyclic voltammetry, linear sweep voltammetry and chronoamperometry. The structures of these formazans were elucidated by elemental analysis GCMS, FTIR and their spectral behavior were investigated using 1 HNMR, 13 CNMR and UV-visible spectral data.…”