CIDNP stands for Chemically Induced Dynamic Nuclear Polarization. It is a phenomenon observed in certain spectroscopic techniques, particularly in the field of nuclear magnetic resonance (NMR) and electron paramagnetic resonance (EPR) spectroscopy. CIDNP occurs when the polarization of nuclear spins is created and manipulated through chemical reactions that involve radical species. This effect can result in enhanced signals for certain nuclei, allowing for the observation of reaction dynamics and the study of mechanisms in systems involving radicals.
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