Paramagnetic complexes of 9, 10-anthraquinone and 9-fluorenone on the metal oxide surface |
| |
Authors: | A V Fionov |
| |
Institution: | (1) Sensor Laboratory, CNR-INFM and Brescia University, Via Valotti, 9, 25133 Brescia, Italy |
| |
Abstract: | Paramagnetic complexes of 9, 10-anthraquinone and 9-fluorenone adsorbed on the surface of calcium, magnesium, zinc, zirconium,
and aluminum oxides and modified Al2O3 as well as on mixed oxides were studied by ESR and electron-nuclear double resonance. Radical anions that do not interact
with Lewis acid sites are generated on the surfaces of oxides with electrondonating properties (CaO, MgO). Paramagnetic complexes
of the anthraquinone or fluorenone radical anion with Lewis acid sites (coordinatively unsaturated metal cations) are formed
in other cases. Several types of similar complexes can be formed. Mechanisms of interaction of the probe molecules with the
metal oxide surface were proposed. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|