Answers are grounded in this paper and cite their sources.
Various types of benzophenone ketyls were prepared by the reaction with alkali, alkaline earth, and rare earth metals and their ESR spectra were studied. In the aliphatic ether solvents DME, THF, and Me-THF, it was found that the monomer ketyl radicals are ion paired and that the spectra show lines due to splittings by protons and metal. Assignments of coupling constants for various benzophenone ketyls gave complete agreement between experimental spectra and predicted ones in intensity ratio. Discussion is also given on splitting mechanism for C13.
No takes yet. Share an insight, caveat, or question.
Noboru Hirota (1962) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: