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Electron Paramagnetic Resonance (EPR) Facility

EPR is a class of spectroscopic techniques based on inducing resonance transitions of electron spins by radiofrequency irradiation. The properties of these transitions (e.g., the resonance frequencies or magnetic fields and the transition probabilities) can reveal a great deal of information about the electronic and chemical structure of a system under study.

The EPR Facility provides support to the research effort of the Faculty of the UA Department of Chemistry and for outside customers (both academic and non-academic). We are able to perform various kinds of EPR experiments (continuous wave EPR, ESEEM, ENDOR, ELDOR (DEER), etc.), provide an interpretation of the spectroscopic results in terms of chemical, geometrical and electronic structures, and help to describe the EPR results in your publications or reports. So if you have any problems involving paramagnetic centers (transition metal ions, stable or transient radicals), come and talk to us. Together we may come up with interesting projects that will enrich your research and make it even more fun than it already is.