Kinetics and mechanism of an unique hydrolysis reaction of (hexafluoroacetylacetonato)bis(ethylenediamine)cobalt(III) in aqueous solution

1984 ◽  
Vol 9 (7) ◽  
pp. 257-259 ◽  
Author(s):  
Y. Kitamura ◽  
R. van Eldik
1990 ◽  
Vol 55 (8) ◽  
pp. 1984-1990 ◽  
Author(s):  
José M. Hernando ◽  
Olimpio Montero ◽  
Carlos Blanco

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.


2001 ◽  
Vol 123 (23) ◽  
pp. 5473-5481 ◽  
Author(s):  
Keith M. Davies ◽  
David A. Wink ◽  
Joseph E. Saavedra ◽  
Larry K. Keefer

1968 ◽  
Vol 72 (9) ◽  
pp. 3142-3148 ◽  
Author(s):  
Alfred V. Willi ◽  
Chong Min Won ◽  
Paul Vilk

2009 ◽  
Vol 7 (1) ◽  
pp. 52-57 ◽  
Author(s):  
Mark A. Russell ◽  
Andrew P. Laws ◽  
John H. Atherton ◽  
Michael I. Page

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