Reaction between Various Copper(II) Complexes and Ascorbic Acid or 3,5-Di-t-butylcatechol
TLDR
In this paper, the electron transfer reactions between various copper(II) complexes and two-electron donors, such as ascorbic acid and 3,5-di-t-butylcatechol, were investigated.Abstract:
The electron transfer reactions between various copper(II) complexes and two-electron donors, such as ascorbic acid and 3,5-di-t-butylcatechol, were investigated Mononuclear copper(II) complexes with a distorted tetrahedral and a trigonal bipyramidal structure, and some binuclear complexes were readily reduced to copper(I) complexes by the two-electron donors, but not mononuclear planar copper(II) complexes The catalytic activities of these copper(II) complexes for the oxidation of 3,5-di-t-butylcatechol by O2 were studied in relation to the above reactionsread more
Citations
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Aerobic Copper-Catalyzed Organic Reactions
TL;DR: The chemistry of copper is extremely rich because it can easily access Cu0, CuI, CuII, and CuIII oxidation states allowing it to act through one-electron or two-Electron processes, which feature confer a remarkably broad range of activities allowing copper to catalyze the oxidation and oxidative union of many substrates.
Journal ArticleDOI
Synthetic models of the active site of catechol oxidase: mechanistic studies
TL;DR: This critical review extensively discusses the synthetic models of catechol oxidase, with a particular emphasis on the different approaches used in the literature to study the mechanism of the catalytic oxidation of the substrate (catechol) by these compounds.
Journal ArticleDOI
The activation of small molecules by dinuclear complexes of copper and other metals
TL;DR: In this paper, the reactivite de complexes avec des coordinats divers (macrocycles, bases de Schiff, heterocycles azotes), vis a vis de O 2, CO 2 H 2 O 2 etc.
Journal ArticleDOI
Tyrosinase Models. Synthesis, Structure, Catechol Oxidase Activity, and Phenol Monooxygenase Activity of a Dinuclear Copper Complex Derived from a Triamino Pentabenzimidazole Ligand.
Enrico Monzani,Luisa Quinti,Angelo Perotti,Luigi Casella,Michele Gullotti,Lucio Randaccio,Silvano Geremia,Giorgio Nardin,Paolo Faleschini,Giovanni Tabbì +9 more
TL;DR: Kinetic experiments show that [Cu(2)(L-55)](4+) is the most efficient catalyst (rate constant 140 M(-1) s(-1)), followed by [Cu (2)(LB5)]( 4+) (60 M(- 1) s (-1)), in this oxidation, while [ Cu(2(L-66)] (4+) undergoes an extremely fast stoichiometric phase followed by a slow and substrate-concentration-independent catalytic phase.
Journal ArticleDOI
Synthesis, structure and catecholase activity study of dinuclear copper(II) complexes†
Jörg Reim,Bernt Krebs +1 more
TL;DR: A series of dinuclear copper(II) complexes as models for the type 3 copper protein catechol oxidase were synthesized as mentioned in this paper, which were characterised by spectroscopic, electrochemical, and in some cases, by single-crystal X-ray diffraction studies.
References
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Anomalous Paramagnetism of Copper Acetate
Brebis Bleaney,K. D. Bowers +1 more
TL;DR: In this article, the paramagnetic resonance spectrum of copper acetate is anomalous in that it resembles that of an ion of spin 1, and its intensity decreases as the temperature is lowered.
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G. S. Patterson,Richard H. Holm +1 more
TL;DR: Polarographic measurements in dimethylformamide solution have been performed on 37 bis-chelate Cu(II) complexes containing primarily salicylaldimine, geta-ketoamine, beta-iminoamine, and pyrrole-2-aldimines ligand systems to reveal the effect of stereochemical and donor atom variations on half-wave potentials.
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Orbital reversal in (oxalato)copper(II) linear chains
Journal ArticleDOI
Polynuclear copper(II) complexes with oxygen bridges: The relationship betweeen magnetic properties and structure
J.A. Bertrand,J.A. Kelley +1 more
TL;DR: In this article, the structures of two copper(II) complexes of the general formula CuL (where L represents the dianion of H3CC(O)C(CH3)N(CH2)nOH) have been determined by single-crystal X-ray diffraction studies.
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