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Updated: Feb 13, 2026

Using Cyclic Voltammetry, UV-Vis-NIR, and EPR Spectroelectrochemistry to Analyze Organic Compounds
Published on: October 18, 2018
Principles and applications of EPR spectroscopy in the chemical sciences
Maxie M Roessler1, Enrico Salvadori
1School of Biological and Chemical Sciences, Queen Mary University of London, Mile End Road, London, E1 4NS, UK. m.roessler@qmul.ac.uk e.salvadori@qmul.ac.uk.
Abstract:
Electron spins permeate every aspect of science and influence numerous chemical processes: they underpin transition metal chemistry and biochemistry, mediate photosynthesis and photovoltaics and are paramount in the field of quantum information, to name but a few. Electron paramagnetic resonance (EPR) spectroscopy detects unpaired electrons and provides detailed information on structure and bonding of paramagnetic species. In this tutorial review, aimed at non-specialists, we provide a theoretical framework and examples to illustrate the vast scope of the technique in chemical research. Case studies were chosen to exemplify systematically the different interactions that characterize a paramagnetic centre and to illustrate how EPR spectroscopy may be used to derive chemical information.
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