ChemInform Abstract: MECHANISM OF THE CHROMIUM(2+), VANADIUM(2+), AND HEXAAMMINERUTHENIUM(2+) REDUCTION OF N-BONDED GLYCINATO- AND β-ALANINATOPENTAAMMINECOBALT(III) COMPLEXES. EVIDENCE FOR PATHS INVOLVING PRECURSOR COMPLEX FORMATION WITH OUTER-SPHERE ELEC

1978 ◽  
Vol 9 (38) ◽  
Author(s):  
C. S. GLENNON ◽  
J. D. EDWARDS ◽  
A. G. SYKES
Keyword(s):  
Complex Formation ◽  
Outer Sphere ◽  
Precursor Complex

Protonation effects on dynamic flux properties of aqueous metal complexes

2009 ◽  
Vol 74 (10) ◽  
pp. 1543-1557 ◽  
Author(s):  
Herman P. Van Leeuwen ◽  
Raewyn M. Town
Keyword(s):  
Complex Formation ◽  
Metal Ion ◽  
Good Description ◽  
Minor Component ◽  
Outer Sphere ◽  
Metal Species ◽  
Central Metal ◽  
Inner Sphere ◽  
A Minor ◽  
Protonated Ligand

The degree of (de)protonation of aqueous metal species has significant consequences for the kinetics of complex formation/dissociation. All protonated forms of both the ligand and the hydrated central metal ion contribute to the rate of complex formation to an extent weighted by the pertaining outer-sphere stabilities. Likewise, the lifetime of the uncomplexed metal is determined by all the various protonated ligand species. Therefore, the interfacial reaction layer thickness, μ, and the ensuing kinetic flux, Jkin, are more involved than in the conventional case. All inner-sphere complexes contribute to the overall rate of dissociation, as weighted by their respective rate constants for dissociation, kd. The presence of inner-sphere deprotonated H2O, or of outer-sphere protonated ligand, generally has a great impact on kd of the inner-sphere complex. Consequently, the overall flux can be dominated by a species that is a minor component of the bulk speciation. The concepts are shown to provide a good description of experimental stripping chronopotentiometric data for several protonated metal–ligand systems.

Evidence for precursor complex formation in Cr2+-Co(III) reactions

1969 ◽  
Vol 91 (14) ◽  
pp. 3982-3983 ◽  
Author(s):  
Maria P. Liteplo ◽  
John F. Endicott
Keyword(s):  
Complex Formation ◽  
Precursor Complex

Capillary isotachophoretic study of outer-sphere complex formation

1987 ◽  
Vol 23 (11) ◽  
pp. 811-813 ◽  
Author(s):  
S. Fanali ◽  
L. Ossicini ◽  
M. Sinibaldi
Keyword(s):  
Complex Formation ◽  
Outer Sphere ◽  
Outer Sphere Complex ◽  
Sphere Complex
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