Outer-sphere and inner-sphere processes in reductive elimination. Direct and indirect electrochemical reduction of vicinal dibromoalkanes

1990 ◽  
Vol 112 (17) ◽  
pp. 6162-6177 ◽  
Author(s):  
Doris Lexa ◽  
Jean Michel Saveant ◽  
Hans J. Schaefer ◽  
Su Khac Binh ◽  
Birgit Vering ◽  
...  
Keyword(s):  
Electrochemical Reduction ◽  
Outer Sphere ◽  
Reductive Elimination ◽  
Inner Sphere

scholarly journals RuIII(edta) complexes as molecular redox catalysts in chemical and electrochemical reduction of dioxygen and hydrogen peroxide: inner-sphere versus outer-sphere mechanism

RSC Advances ◽  
2021 ◽  
Vol 11 (35) ◽  
pp. 21359-21366
Author(s):  
Debabrata Chatterjee ◽  
Marta Chrzanowska ◽  
Anna Katafias ◽  
Maria Oszajca ◽  
Rudi van Eldik
Keyword(s):  
Hydrogen Peroxide ◽  
Electron Transfer ◽  
Electrochemical Reduction ◽  
Molecular Oxygen ◽  
Outer Sphere ◽  
Transfer Processes ◽  
Edta Complexes ◽  
Inner Sphere ◽  
Electron Transfer Processes ◽  
Sphere Mechanism

[RuII(edta)(L)]2–, where edta4– =ethylenediaminetetraacetate; L = pyrazine (pz) and H2O, can reduce molecular oxygen sequentially to hydrogen peroxide and further to water by involving both outer-sphere and inner-sphere electron transfer processes.

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.

Features of the formation of zinc(II) and cadmium(II) complexes with the inner-sphere and outer-sphere position of the decahydro-closo-decaborate anion in the presence of azaheterocyclic ligands

2021 ◽  
Vol 520 ◽  
pp. 120315
Author(s):  
Svetlana E. Korolenko ◽  
Aleksey S. Kubasov ◽  
Lyudmila V. Goeva ◽  
Varvara V. Avdeeva ◽  
Elena A. Malinina ◽  
...  
Keyword(s):  
Outer Sphere ◽  
Inner Sphere ◽  
Closo Decaborate Anion

Inner-Sphere and Outer-Sphere Water Interactions in Co(II) paraCEST Agents

2018 ◽  
Vol 57 (4) ◽  
pp. 2085-2095 ◽  
Author(s):  
Samira M. Abozeid ◽  
Eric M. Snyder ◽  
Timothy Y. Tittiris ◽  
Charles M. Steuerwald ◽  
Alexander Y. Nazarenko ◽  
...  
Keyword(s):  
Outer Sphere ◽  
Inner Sphere
Sign in / Sign up

Export Citation Format

Share Document