Preparation and Electrochemistry of a Modified Electrode by Electro‐oxidative Polymerization of Copper and Cobalt Complexes of 2,6‐diacetylpyridine Mono(ethylenediamine)

Abstract

Copper and cobalt complexes of the half unit 2,6-diacetylpyridine mono(ethylenediamine) have been prepared and characterized using analytical, spectral, and magnetic measurements. The oxidation polymerization of these complexes on Pt electrodes has been carried out in CH3CN and dimethylformamide (DMF). The redox properties of the formed polymeric films have been examined by cyclic voltammetry. In both DMF and CH3CN, the Cu complex formed a stable film while the Co complex formed a stable film only in CH3CN. The films showed single pairs of coupled peaks corresponding to Cu (II)/ Cu (I) and Co (II)/Co (I) redox systems.

Enhancing conductivity in polymers: The role of metal ions in conducting polymer systems

“…Hemoglobin-related fat globules, red blood cells, and whole blood can all be measured using electrochemical techniques; however, spectrophotometric analyses of these systems typically show interference effects. 110 An electrochemical device consists of two or three…”

“…When using electrochemical techniques, very little sample amounts are required in order to obtain the signals, and very low detection limits and excellent selectivity are achieved. Hemoglobin‐related fat globules, red blood cells, and whole blood can all be measured using electrochemical techniques; however, spectrophotometric analyses of these systems typically show interference effects 110 . An electrochemical device consists of two or three electrode systems.…”

Chemical Response of Nanocomposite Membranes of Electroactive Polydiaminonaphthalene Nanoparticles to Heavy Metal Ions

“…Electrically conducting polymers from diaminonaphthalenes and phenylenediamines have attracted much attention because of their widely potential applications including biosensors to glucose, ascorbic acid, dopamine, and norepinephrine, − humidity sensors, nitric oxide microsensors, electrocatalytic oxidation of methanol, hydroquinone, and formaldehyde, − Hg(II) sensing/adsorbing materials, − Ag(I)/Pb(II) sorbents and sensors, − and fluorescence quencher for detecting fluorescence-enhanced nucleic acid . These important applications should be attributed to the reversible redox, electrochemical, and coordinating characteristics of the functional groups in the large π-conjugated chains of the conducting polymers. − In particular, conducting polymers with functional groups can efficiently decontaminate heavy metal ion contaminated water because of a strong coordination interaction between the heavy metal ions and the functional groups. − Poly(1,8-diaminonaphthalene) (P18DAN), as a unique functional material, has been applied in modifying an electrode for Ag + reactive sorption through a redox and coordination interaction between Ag + and −NH 2 /–NH–/–N groups on the P18DAN chains . The sensitivity of P18DAN and poly(aniline- co -1,8-diaminonaphthalene) to the heavy metal ions including Cu 2+ , Hg 2+ , Pb 2+ , and Cr 6+ and nonmetal ion selenium(IV) has been investigated by spectroscopy and electrochemical techniques. ,− P18DAN powder was mixed into carbon paste electrodes to quickly determine Pb 2+ in aqueous solutions, achieving a sensitive and selective determination. − Poly(aniline- co -1,8-diaminonaphthalene) has applicability in biocathodes of microbial fuel cells and the microbial community .…”