NMR SPECTROSCOPY OF ORGANOLITHIUM COMPOUNDS .15. 2-DIMENSIONAL LI-6,H-1-NMR SHIFT CORRELATION BY MULTIPLE-QUANTUM SPECTROSCOPY AND POLARIZATION TRANSFER - NEW TOOLS FOR STRUCTURAL RESEARCH IN THE FIELD OF ORGANOLITHIUM COMPOUNDS
He. Mons et al., NMR SPECTROSCOPY OF ORGANOLITHIUM COMPOUNDS .15. 2-DIMENSIONAL LI-6,H-1-NMR SHIFT CORRELATION BY MULTIPLE-QUANTUM SPECTROSCOPY AND POLARIZATION TRANSFER - NEW TOOLS FOR STRUCTURAL RESEARCH IN THE FIELD OF ORGANOLITHIUM COMPOUNDS, Chemische Berichte, 126(12), 1993, pp. 2747-2751
Sizable scalar Li-6,H-1 spin-spin coupling constants have been observe
d for the new dilithio compound (Z)-2-lithio-1-(o-lithiophenyl)ethene
(3) which allow an assignment of the two nonequivalent Li-6 resonance
signals measured for the dimer of 3. Two-dimensional Li-6,H-1 shift co
rrelation experiments based on multiple quantum spectroscopy as well a
s on polarization transfer are introduced as new tools for structural
research in the field of organolithium compounds.