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On the Mechanism of Oxidation of Formate by Ni(III) (meso-5,7,7,12,14,14-hexamethy 1-1,4,8,11 - tetraazacyclotetradecane) in Aqueous Solutions
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Abraham Meshulam
Veröffentlicht/Copyright:
1. Juli 1999
Abstract
The title trivalent nickel complex, Ni(III)L, oxidizes formate in slightly acidic solutions via an inner sphere, single electron, rate determining step. The rate of oxidation of the formate in Ni(III)L(H2O) (HCO2)+2 is considerably faster than in Ni(III)L(H2PO4 )(HCO2-)+ and in Ni(III)L(HCO2-)+2. The results point out that formate has an ambivalent role in this process; on the one hand it is the reducing agent but on the other hand it stabilizes the trivalent nickel complex.
Keywords: Trivalent nickel; 5,7,7,12,14,14-hexamethyl- 1,4,8,11-tetraazacyclotetradecane; formate; redox; electrochemistry
Published Online: 1999-7-1
Published in Print: 1999-7-1
© 2014 by Walter de Gruyter Berlin/Boston
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Artikel in diesem Heft
- Synthesis, Acid Hydrolysis and Formation of the Molybdatopentaamminechromium(III) Ion in Aqueous Solution
- Kinetic and Mechanistic Studies on the Interaction of Adenosine with Diaquaethylenediamineplatinum(II) Ion
- On the Mechanism of Oxidation of Formate by Ni(III) (meso-5,7,7,12,14,14-hexamethy 1-1,4,8,11 - tetraazacyclotetradecane) in Aqueous Solutions
- Substitution Reactions on Pd(II) L-Histidine-diaqua Complexes: Comparative View from Chloride to Nucleobases and Dinucleotides
- Thermo-kinetic and Spectral Studies of Lanthanide(III) Complexes with 2-Hydroxy-l -benzylidene-2-furoyl Hydrazine
- Free Radical Induced Oxidation of L-Cystine by Alkaline Permanganate - A Kinetic Study
- Reaction between [Ru(H2O)6]2+ and DMF: A Complete Volume Profile of a Monocomplex Formation Reaction on a d6 Low Spin Aquaion
- Notes for Contributors Inorganic Reaction Mechanisms
- Journal Order Form
Schlagwörter für diesen Artikel
Trivalent nickel;
5,7,7,12,14,14-hexamethyl- 1,4,8,11-tetraazacyclotetradecane;
formate;
redox;
electrochemistry
Artikel in diesem Heft
- Synthesis, Acid Hydrolysis and Formation of the Molybdatopentaamminechromium(III) Ion in Aqueous Solution
- Kinetic and Mechanistic Studies on the Interaction of Adenosine with Diaquaethylenediamineplatinum(II) Ion
- On the Mechanism of Oxidation of Formate by Ni(III) (meso-5,7,7,12,14,14-hexamethy 1-1,4,8,11 - tetraazacyclotetradecane) in Aqueous Solutions
- Substitution Reactions on Pd(II) L-Histidine-diaqua Complexes: Comparative View from Chloride to Nucleobases and Dinucleotides
- Thermo-kinetic and Spectral Studies of Lanthanide(III) Complexes with 2-Hydroxy-l -benzylidene-2-furoyl Hydrazine
- Free Radical Induced Oxidation of L-Cystine by Alkaline Permanganate - A Kinetic Study
- Reaction between [Ru(H2O)6]2+ and DMF: A Complete Volume Profile of a Monocomplex Formation Reaction on a d6 Low Spin Aquaion
- Notes for Contributors Inorganic Reaction Mechanisms
- Journal Order Form
