Electron spin resonance

Abstract

The technique variously known as Electron Spin Resonance (ESR) or Electron Paramagnetic Resonance (EPR) continues to find important applications mainly in the Biomedical, Materials and Environmental Sciences. Among the advances which feature information gleaned through its agency, are studies of enzymes and membranes, conductive polymers and novel materials, fuel cells, antioxidants, environmental samples, catalysts and photocatalysts, spin-trapping agents, spin-probes and spin-labels. High-field methods are particularly useful in obtaining improved resolution of overlapping signals and the interpretation of many systems had benefited from the use of Density Functional Theory (DFT) calculations.

How intrinsic nuclear nonadiabaticity affects molecular structure, electronic density, and conformational stability: Insights from the multicomponent DFT calculations of Mu/H isotopologues

“…However, the experimental complications in terms of the generation, precise manipulation, and product/target selectivity of these simple yet highly reactive free radicals have overshadowed their applicability in the studies of chemical reaction mechanisms. In addition, despite the extensive applications of the electron paramagnetic resonance (EPR) spectroscopy in the studies of transient radical species to date , the practical complexities, that is, the usage of harsh reagents or radiolysis procedure, often lead to the detection of several inadvertent byproducts. Fortunately, nature has granted us an elementary particle called muon which is a half‐spin particle with a mass one‐ninth that of the proton.…”

Instrumental Methods to Characterize Molecular Phospholipid Films on Solid Supports

“…114 A new review by Rhodes has a broad section on EPR applied to biological molecules, which also includes supported bilayers. 115 Impedance spectroscopy is typically used to measure the complex electrical resistance of a system, is surface sensitive, and rather strongly affected by bulk properties. It is also known as dielectric spectroscopy, as it measures the dielectric properties of a sample as a function of the applied frequency.…”

“…The simulation of EPR spectra can also provide kinetic parameters, such as the rate of exchange of the protein bound lipids with those that are in the fluid membrane . A new review by Rhodes has a broad section on EPR applied to biological molecules, which also includes supported bilayers …”

Mn2+ doped SrSn(PO4)2 nanopowder for new novel LED material

“…( ) [38,39]. When compared to the free ion term, g value exhibits a slight negative shift (g e = 2.20023) which is an indication of ionic bonding nature between Mn 2+ ions to surrounding ligands.…”