Title
Influence of the Piepho-mode on charge ordering in mixed-valence biferrocenium salts: Mössbauer spectra
Date Issued
01 January 1998
Access level
metadata only access
Resource Type
journal article
Author(s)
Université de Versailles
Publisher(s)
Elsevier
Abstract
A model of phase transitions in biferrocenium salts is proposed. For the first time for dimeric clusters, the role of the a-bridge-b stretching mode (Piepho-mode) in the charge-ordered phase stabilization is examined. Depending of the sign of the interaction parameter this mode is shown to contribute to 'extra' electron localization or delocalization. First and second order phase transitions are elucidated to be possible. Within the framework of the proposed model different types of Mössbauer spectra resembling the experimental situation are obtained.
Start page
171
End page
185
Volume
226
Issue
February 1
Language
English
OCDE Knowledge area
Ingeniería de materiales
Nano-materiales
Scopus EID
2-s2.0-0032338254
Source
Chemical Physics
ISSN of the container
03010104
Sponsor(s)
The authors are grateful to Professor B.S. Tsukerblat for fruitful discussion of the paper. This work has been performed during the visit of one of us (S.I.K.) to the Laboratoire de Magnétisme et d'Optique (URA CNRS 1531), Versailles. S.I. Klokishner is grateful to CNRS for the financial support to allow this stay possible.
Sources of information:
Directorio de Producción Científica
Scopus