Journal ArticleDOI
Reactions of carbonate radical with cobalt(II) aminopolycarboxylates
TLDR
In this article, the reaction of carbonate (CO3−·) and bicarbonate (HCO3·) radicals generated by photolysis of a carbonate solution at pH 11.2 and 8.5, respectively, with Co(II) complexes of iminodiacetic acid (IDA) and ethylenediaminetetric acid (EDTA) have been studied.Abstract:
Reactions of carbonate (CO3−·) and bicarbonate (HCO3·) radicals generated by photolysis of a carbonate or bicarbonate solution at pH 11.2 and 8.5, respectively, with Co(II) complexes of iminodiacetic acid (IDA) and ethylenediaminetetraacetic acid (EDTA) have been studied. The rate constants for the reactions were in the order of 106–107 dm3mol−1s−1. From the time-resolved spectroscopy of the products formed after reaction of CO3·−· or HCO3·, it is observed that CO3−· or HCO3· oxidize the metal center to its higher oxidation state.read more
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Book ChapterDOI
Plausible roles of carbonate in catalytic water oxidation
TL;DR: Bicarbonate/carbonate are efficient co-catalysts in a variety of water oxidation processes as mentioned in this paper, and they stabilizes transition metal complexes at high-oxidation states that are essential intermediates in the catalytic processes.
Journal ArticleDOI
One electron oxidation of Ni(II)-iminodiacetate by carbonate radical
TL;DR: In this article, the reaction of carbonate radical (CO3−), generated by photolysis or by radiolysis of a carbonate solution with nickel(II)-iminodiacetate (Ni(II)IDA) were studied at pH 10.5 and ionic strength (I)==0.467 V. The stable product arising from the ligand degradation in the complex is mainly glyxalic acid.
Journal ArticleDOI
Different oxidation mechanisms of MnII(polyphosphate)n by the radicals and
TL;DR: In this article, the kinetics and mechanisms of the oxidation of and of biological relevant radicals were studied and the plausible mechanisms of reaction of these radicals are discussed. But, the results point out that these two radicals react via different mechanisms.
Journal ArticleDOI
Redox Properties of CeIVDOTA in Carbonated Aqueous Solutions. A Radiolytic and an Electrochemical Study.
Inna Popivker,Dan Meyerstein,Dalia Gitin,Elad Avraham,Eric Maimon,Tomer Zidki,Haim Cohen,Haim Cohen,Guy Yardeni,Philippe Moisy,Svetlana Pevzner,Israel Zilbermann +11 more
TL;DR: In this article, the redox chemistry of CeIIIDOTA in cage in carbonate solutions was studied using electrochemistry and radiolysis techniques (continuous radio-lysis and pulse-radiolysis).
Journal ArticleDOI
Reactions of carbonate radical anion with amino-carboxylate complexes of manganese(II) and iron(III)
TL;DR: The reaction kinetics of eight amino-carboxylate complexes of Fe(III) and Mn(II) with carbonate radical anion were studied using the pulse radiolysis method and UV-vis spectroscopy as mentioned in this paper.
References
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Journal ArticleDOI
Pyruvic acid: ii. the determination of keto acids in blood and urine
Journal ArticleDOI
Spectrophotometric Method for Determining Formaldehyde
Journal ArticleDOI
Flash photolysis in the vacuum ultraviolet region of sulfate, carbonate, and hydroxyl ions in aqueous solutions
Elie Hayon,John J. McGarvey +1 more
Journal ArticleDOI
Oxidation of first-row bivalent transition-metal complexes containing ethylenediaminetetra-acetate and nitrilotriacetate ligands by free radicals: a pulse-radiolysis study
Joseph Lati,Dan Meyerstein +1 more
TL;DR: In this article, the authors studied the kinetics of reaction of OH radicals with the ligands (L) ethylenediaminetetra-acetate (edta), and their complexes [ML](M = ZnII, CuII, NiII, CoII, FeII, and MnII), and the reasons for these observations are discussed in detail.