Electron spin resonance

Abstract

A review is presented of the literature on ESR mainly published during the period 2005–2007. A focus is made on subjects such as catalysis, fuel cells, mechanochemistry, environmental applications, archaeological dating and radiation dosimetry, aspects of biological systems and the adsorption of molecules by porous solids, including porous carbon, silica and zeolites. Aspects of spin-trapping are considered among these applications, and also fundamental studies of organic radicals including triplet state species and biradicals. Developments in ESR appear to continue in a steady fashion and there are really no entirely new areas being extracted. Among the technical developments that have been reported are advances in computing, both in the acquisition and processing of spectral data and in predicting the magnetic properties of individual molecules (g-values and hyperfine couplings), most usually now done using Density Functional Theory (DFT) calculations.