1H AND 7LI MAGNETIC RESONANCE SPECTRA OF SOME ARYLLITHIUMS

The 1H magnetic resonance spectra of phenyllithium, meta- and para-tolyllithium and the corresponding chloro derivatives have been analysed and, where possible, the results have been compared with previous work. Serious errors have been found in the work of Fraenkel et al. The 7Li magnetic resonance spectra of these compounds have also been obtained and an observed correlation of the 1H and 7Li chemical shifts has been interpreted in terms of the ionic character of the carbon-lithium bond. © 1969.