Synthesis, spectroscopy, electrochemistry and structural determination of asymmetric cobalt(III) Schiff base complexes

Kianfar, Ali Hossein; Sedighipoor, Maryam; Mohammadnezhad, Gholamhossein; Görls, Helmar; Plass, Winfried; Roushani, Mahmoud

doi:10.1007/s13738-016-0979-7

Cited by 3 publications

(2 citation statements)

References 37 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For the complexes, zwitterionic cobalt species present two reduction processes in the cathodic region. The first reduction can be attributed to the Co III /Co II reduction process of the octahedral center, leading to the second process, which can be assigned to the ligand reduction process. In the positive region, all complexes presented an irreversible anodic peak, which can be attributed to the oxidation of tetrahedral Co(II) units, forming the Co II /Co III redox couple .…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Peroxidase activity of new mixed‐valence cobalt complexes with ligands derived from pyridoxal

Fontana

Siqueira

Ceolin

et al. 2019

Applied Organom Chemis

View full text Add to dashboard Cite

New mixed‐valence cobalt complexes with ligands derived from pyridoxal were synthesized and characterized, and their application as mimetics of the peroxidase enzyme was investigated. Single‐crystal X‐ray diffraction was used to analyze all complex structures in the solid state and their electrochemical behavior was investigated. A reactivity pattern was observed in the complex synthesis regarding the cobalt compounds from which analogous zwitterionic derivatives were obtained. The importance of these compounds lies in understanding their behavior in an oxidizing environment and evaluating whether they can activate hydrogen peroxide to oxidize phenolic compounds. In nature, enzymes called peroxidases, which efficiently oxidize phenolic compounds, trigger many reactions involving the activation of hydrogen peroxide to oxidize organic substrates. However, these enzymes present several disadvantages, including denaturation and elevated costs. Therefore, these limitations can be overcome by expanding research into the study of synthetic catalysts for the oxidation of phenolic compounds using hydrogen peroxide, which is a highly relevant field of bioinorganic chemistry.

show abstract

Section: Resultsmentioning

confidence: 99%

“…Schematic representation of stabilization of the adduct 4‐aminoantipyrine–phenol. Scheme adapted from Kim and collaborators…”

Section: Methodsmentioning

confidence: 99%