Kinetics and Mechanism of the One-Electron Reduction of Iodine by [RuII(NH3)5isn]2+in Aqueous Solution

1998 ◽  
Vol 37 (6) ◽  
pp. 1257-1263 ◽  
Author(s):  
Jiafei Sun ◽  
David M. Stanbury
Keyword(s):  
Aqueous Solution ◽  
Kinetics And Mechanism ◽  
Electron Reduction ◽  
The One

Generation of rhodium(II) and rhodium(I) from the one-electron reduction of tris(2,2'-bipyridine)rhodium(III) ion in aqueous solution

1981 ◽  
Vol 103 (12) ◽  
pp. 3362-3370 ◽  
Author(s):  
Quinto G. Mulazzani ◽  
Silvano Emmi ◽  
Morton Z. Hoffman ◽  
Margherita Venturi
Keyword(s):  
Aqueous Solution ◽  
Electron Reduction ◽  
The One

Kinetics and mechanism of the reaction of iron(III) with 6-methyl-2,4-heptanedione and 3,5-heptanedione

1990 ◽  
Vol 55 (8) ◽  
pp. 1984-1990 ◽  
Author(s):  
José M. Hernando ◽  
Olimpio Montero ◽  
Carlos Blanco
Keyword(s):  
Aqueous Solution ◽  
Metal Ion ◽  
Activation Parameters ◽  
Enol Form ◽  
Kinetics And Mechanism ◽  
Kinetic Constants ◽  
Steric Factors ◽  
Kinetics Of ◽  
Mechanism Of The Reaction

The kinetics of the reactions of iron(III) with 6-methyl-2,4-heptanedione and 3,5-heptanedione to form the corresponding monocomplexes have been studied spectrophotometrically in the range 5 °C to 16 °C at I 25 mol l-1 in aqueous solution. In the proposed mechanism for the two complexes, the enol form reacts with the metal ion by parallel acid-independent and inverse-acid paths. The kinetic constants for both pathways have been calculated at five temperatures. Activation parameters have also been calculated. The results are consistent with an associative activation for Fe(H2O)63+ and dissociative activation for Fe(H2O)5(OH)2+. The differences in the results for the complexes of heptanediones studied are interpreted in terms of steric factors.

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