Difference between revisions of "Electron Spin Resonance (ESR)"
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=== Background === | === Background === | ||
Revision as of 11:35, 16 September 2010
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Background
Electron Spin Resonance spectroscopy or electron paramagnetic resonance spectroscopy is a technique for studying chemical species that have one or more unpaired electrons. It is analogous to NMR except it deals with spins of electrons rather than the spins of atomic nuclei. It is most useful in studying free radicals or organic complexes having transition metal ions since most stable molecules have all their electrons paired. Most ESR spectra are recorded and published as first derivatives of the original signal.