Abstract
There exist several methods to record the spectrum of short-lived paramagnetic species. The temporal resolution of “stopped flow” and “freeze quench” techniques is around 10−3 s. Time resolved techniques based on in situ generation of species, direct detection and repeating the experiment for several values of the magnetic field can reduce this to 10−7 s. These techniques are used in particular to study photochemical reactions. The shape and intensity of the spectra produced by radical intermediates are determined by the CIDEP effect and its analysis allows us to distinguish between “radical pair” and “triplet state” mechanisms.
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Volume 1: Bertrand P. (2020) Electron Paramagnetic Resonance Spectroscopy - Fundamentals, Springer, Heidelberg.
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Maurel, V., Gambarelli, S. (2020). EPR of Short-Lived Magnetic Species. In: Electron Paramagnetic Resonance Spectroscopy. Springer, Cham. https://doi.org/10.1007/978-3-030-39668-8_10
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DOI: https://doi.org/10.1007/978-3-030-39668-8_10
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