Spectral and Electrochemical Characterization of Dibenzotetraaza[14]annulenes

The UV/Vis absorption spectra and cyclic voltammograms (CV) of the Cu(II) and Ni(II) complexes of γ,γ'-alkoxycarbonyl derivatives of α,α'- diphenyldibenzo-tetraaza[14]annulene are analyzed and compared. The observed ratio of absorption intensities at the peaks of π-π* transitions is linear...

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Bibliographic Details
Published in:Supramolecular chemistry 2005-12, Vol.17 (8), p.643-647
Main Authors: Rodakiewicz-Nowak, Janina, Nowak, PaweŁ, Rutkowska-Żbik, Dorota, Ptaszek, Marcin, Michalski, Oskar, Mynarczuk, Grzegorz, Eilmes, Julita
Format: Article
Language:English
Subjects:
Absorption spectra
Copper complexes
Cyclic voltammetry
Dibenzotetraazaannulenes
Inductive effect
Ionization potential
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Summary:The UV/Vis absorption spectra and cyclic voltammograms (CV) of the Cu(II) and Ni(II) complexes of γ,γ'-alkoxycarbonyl derivatives of α,α'- diphenyldibenzo-tetraaza[14]annulene are analyzed and compared. The observed ratio of absorption intensities at the peaks of π-π* transitions is linearly correlated with the difference of HOMO and LUMO energy levels of the substituents. Moreover, the measured values of the mid-peak potential of metal redox reactions on a Pt electrode in DMF are linearly correlated with the ionization potential values of the appropriate substituents.
ISSN:1061-0278
1029-0478
DOI:10.1080/10610270500126727