Title: Organic mixed-valence systems - intervalence transition in partly oxidized aromatic polyamines - electrochemical and optical studies
Authors: Bonvoisin, J ×
Launay, Jp
Van der Auweraer, Mark
Deschryver, Fc #
Issue Date: Jan-1994
Publisher: American Chemical Society
Series Title: Journal of Physical Chemistry vol:98 issue:19 pages:5052-5057
Abstract: The aromatic polyamine molecule denoted p-EFTP containing three equivalent tertiary amine groups is studied by electrochemistry and UV-vis-near-IR spectroscopy. Cyclic voltammetry and coulometry show a unique, reversible, oxidation wave corresponding to a three-electron process. Near-IR spectroscopy unambiguously reveals the presence of intervalence transitions in the mixed-valence forms of the molecule under study. A novel analysis allows the extraction of comproportionation constants from the dependence of intervalence absorption bands vs average oxidation state. From the corrected spectra of the mixed-valence forms, it is then possible to evaluate the effective electronic couplings of both mixed-valence forms and to compare this with a theoretical estimation.
ISSN: 0022-3654
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Molecular Imaging and Photonics
× corresponding author
# (joint) last author

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