Electron Paramagnetic Resonance laboratory (@UniCT)

Electron Paramagnetic Resonance (EPR) Bruker Elexsys E500

The EPR technique is a powerful tool which can reveal and characterize paramagnetic species such as radicals and metal complexes having at least an unpaired electron. Also transient radical species can be revealed by using spin trap substances which stabilize the radical under the experimental time scale. In the case of copper complex species the coordination environment (i.e. the donor atoms), its strength and geometry can be inferred, also by varying the pH value. Samples can be solid or liquid, but generally the spectrum run on (frozen) solution is more informative. The EPR Bruker E500 is located at the Department of Chemical Sciences of the University of Catania (UniCT) and operated by CNR researcher under CNR-UniCT agreement.