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NMR chemical shift method in magnetic susceptibility measurements applied to studies of the reaction of cobalt complexes with cumene hydroperoxide
Author(s) -
Trzeciak A. M.,
Ziółkowski J. J.
Publication year - 1982
Publication title -
organic magnetic resonance
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.483
H-Index - 72
eISSN - 1097-458X
pISSN - 0030-4921
DOI - 10.1002/mrc.1270190111
Subject(s) - paramagnetism , cumene , cobalt , chemistry , cumene hydroperoxide , chemical shift , magnetic susceptibility , spectral line , chemical reaction , inorganic chemistry , nuclear magnetic resonance , catalysis , organic chemistry , crystallography , quantum mechanics , physics , astronomy
The NMR chemical shift method was applied for the determination of the magnetic susceptibility of paramagnetic transition metal complexes in solution. The method was found to be very useful for the determination of magnetic susceptibility changes during a chemical reaction in which one paramagnetic compound produced another. The concentrations of two paramagnetic cobalt complexes [Co 3 O(O 2 CCH 3 ) 6 (HO 2 CCH 3 ) 3 ] and Co(O 2 CCH 3 ) 2 , were calculated from the chemical shift value observed during their reaction with cumene hydroperoxide. The results are consistent with those obtained from electronic spectra.