Summary
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1.
Free pyrryloxyl radicals were prepared in solution and their electron paramagnetic resonance spectra were investigated.
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2.
There was a superfine interaction of the unpaired electron with the nitrogen nucleus in the pyrryloxyl radicals.
Literature cited
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Rozantsev, É.G., Medzhidov, A.A. & Neiman, M.B. Kinetically stable radicals of the pyrrole series. Russ Chem Bull 12, 1729–1730 (1963). https://doi.org/10.1007/BF00845817
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DOI: https://doi.org/10.1007/BF00845817