COMPARISON OF E(A) VALUES OBTAINED BY THERMAL-ANALYSIS WITH ENERGY OFCHARGE-TRANSFER SPECTRA FOR POTASSIUM AND SILVER PERMANGANATES

Citation
M. Cieslakgolonka et al., COMPARISON OF E(A) VALUES OBTAINED BY THERMAL-ANALYSIS WITH ENERGY OFCHARGE-TRANSFER SPECTRA FOR POTASSIUM AND SILVER PERMANGANATES, Journal of thermal analysis, 43(1), 1995, pp. 157-167
Citations number
31
Categorie Soggetti
Chemistry Analytical
Journal title
ISSN journal
03684466
Volume
43
Issue
1
Year of publication
1995
Pages
157 - 167
Database
ISI
SICI code
0368-4466(1995)43:1<157:COEVOB>2.0.ZU;2-H
Abstract
The activation energy, E(a) taken from the thermal decomposition of KM nO4 and AgMnO4 was compared with the energy of the longest wavelength O-->Mn 'charge transfer' (CT) transition. The E(a) and CT correlation was found in these systems. However, such relationship can be valid wh en in the dissociation process the electron transfer is assumed to be the rate determining step. Thus, the permanganates as well as the prev iously studied chromates, are positive examples showing that in some c ases, the energies derived from both methods can be comparable.