Spectral properties and redox potentials of silver atoms complexed by chloride ions in aqueous solution

Authors
Lampre, I Pernot, P Mostafavi, M
Citation
I. Lampre et al., Spectral properties and redox potentials of silver atoms complexed by chloride ions in aqueous solution, J PHYS CH B, 104(26), 2000, pp. 6233-6239
Citations number
50
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
JOURNAL OF PHYSICAL CHEMISTRY B
ISSN journal
15206106 → ACNP
Volume
104
Issue
26
Year of publication
2000
Pages
6233 - 6239
Database
ISI
SICI code
1520-6106(20000706)104:26<6233:SPARPO>2.0.ZU;2-L
Abstract
Pulse radiolysis is used to determine the absorption spectra of the transie nt species formed during the decay of the hydrated electron in an aqueous s olution containing AgCl43-. The mechanisms of AgCl43- reduction by solvated electrons and hydroxyalkyl radicals of 2-propanol are discussed. The redox potential of the couples AgCl43-/(AgCl44-)-Cl-0 and AgCl43-/Ag-0 + 4Cl(-) is evaluated. It is shown that the redox potential of the solvated silver a tom couple is lowered by the presence of Cl- ligands. The value of the E-o( AgCl43-/(AgCl44-)-Cl-0) is estimated to be around -2.3 V-NHE.