Conclusions
Double electron-nuclear resonance and triple electron-nuclear-nuclear resonance have been used for the first time to determine the HFS constants and their relative signs in free radicals and cation-radicals of phenoxazine, phenothiazine, and phenothiazine derivatives.
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Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 5, pp. 1094–1097, May, 1986.
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Kadirov, M.K., Il'yasov, A.V., Kamalov, R.M. et al. Investigation of free radicals and cation-radicals of phenoxazine, phenothiazine, and phenothiazine derivatives by EPR and electron-nuclear resonance. Russ Chem Bull 35, 991–993 (1986). https://doi.org/10.1007/BF00955364
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DOI: https://doi.org/10.1007/BF00955364