Publication at Faculty of Science |
2016
Abstract
Singly charged complexes of copper, silver, sodium, and zinc with redox-active ligands (catechol, maltol, and phenanthraquinone) were studied by mass spectrometry, infrared multiphoton dissociation (IRMPD) spectroscopy, and density functional theory calculations. The redox processes in copper complexes were evaluated based on a comparison with complexes bearing a non-redox active metal and by using the C-O stretching mode as a redox marker.
We have detected changes in electron distribution in copper complexes with phenanthraquinone and maltol. It led to a partial reduction of the phenanthraquinone ligands on one hand and to the oxidation of maltol on the other.