Estimation of electron transfer rate constant from static (optical and thermodynamic) measurements: A study of Ru(NH3)(5)pz(2+)+Fe(CN)(6)(3-)reversible arrow Ru(NH3)(5)pz(3+)+Fe(CN)(6)(4-) electron transfer reactions

Authors
Sanchez, F Perez-Tejeda, P Lopez-Lopez, M
Citation
F. Sanchez et al., Estimation of electron transfer rate constant from static (optical and thermodynamic) measurements: A study of Ru(NH3)(5)pz(2+)+Fe(CN)(6)(3-)reversible arrow Ru(NH3)(5)pz(3+)+Fe(CN)(6)(4-) electron transfer reactions, INORG CHEM, 38(8), 1999, pp. 1780-1784
Citations number
42
Categorie Soggetti
Inorganic & Nuclear Chemistry
Journal title
INORGANIC CHEMISTRY
ISSN journal
00201669 → ACNP
Volume
38
Issue
8
Year of publication
1999
Pages
1780 - 1784
Database
ISI
SICI code
0020-1669(19990419)38:8<1780:EOETRC>2.0.ZU;2-D
Abstract
A kinetic study of the electron-transfer reactions Ru(NH3)(5)pz(2+) + Fe(CN )(6)(3-) reversible arrow Ru(NH3)(5)pz(3+) + Fe(CN)(6)(4-) was carried out in several water-organic solvent mixtures at 298.2 K. The free energies of activation for these thermal electron-transfer reactions were calculated fr om a combination of spectroscopic and thermodynamic data and are compared w ith those obtained from the kinetic study. Quantitative agreement is found between the two series of data. This shows the possibility of estimating ac tivation free energies for electron-transfer reactions from these (static) measurements.