EXAFS and Ligand Exchange Reaction of Hydrated 3d Transition Metal Complexes
- 1 January 1993
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 32 (S2)
- https://doi.org/10.7567/jjaps.32s2.806
Abstract
Relation between EXAFS parameters and ligand exchange reaction rate constant in solution is investigated. The EXAFS spectra of hydrated 3d metal complexes have been obtained over the temperature range of 20 K to 300 K. The temperature dependences of the mean square relative displacement σ2 and the third order coefficient C 3 in cumulant expansion of EXAFS signal are examined for the first nearest metal-oxygen bond. The ligand exchange rate constant correlates not only with σ2 but also C 3 both obtained from the EXAFS for solid hydrated complexes, and the higher the rate constant, the more rapidly σ2 and C 3 increase with temperature.Keywords
This publication has 0 references indexed in Scilit: