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Reactions of silver(II) complexes with ketoxime, nitroso and isonitroso compounds: ESR spectroscopy of the radicals formed
Author(s) -
Jezierski Adam
Publication year - 1989
Publication title -
magnetic resonance in chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.483
H-Index - 72
eISSN - 1097-458X
pISSN - 0749-1581
DOI - 10.1002/mrc.1260270207
Subject(s) - chemistry , radical , hyperfine structure , nitroso , oxidizing agent , nitroso compounds , solvent , mbba , photochemistry , inorganic chemistry , medicinal chemistry , organic chemistry , liquid crystal , physics , quantum mechanics , optics
Abstract Reactions of silver(II) complexes with ketoxime, nitroso and isonitroso compounds in organic solvents were investigated by ESR. The oxidation yielded iminoxy radicals RR′CNO˙ and/or nitroxides R 1 R 2 NO˙. The silver(II) complexes with nitrogen ligands (mono‐, bi‐ and tri‐dentate) and AgO were used as oxidizing agents. The reaction products were analysed on the basis of the ESR spectra. The signs of the 14 N hyperfine constants for the radicals were determined using the ESR spectra in an MBBA liquid nematic crystal as solvent. A linear correlation was found between the hyperfine 14 N parameters and the Dimroth‐Reichardt E T (30) coefficients for the iminoxy radicals.