Lithium NMR in Lithium—Carbon Solid State Compounds

Historically, 7Li NMR started in 1946 with Li+ aqueous solutions whereas Li-alkyl where first studied in the early sixties. In spite of the importance of lithiated organic compounds in organic synthesis and its high sensitivity, 7Li has not contributed so much to the development of NMR, like 1H, 13C, 17O and 15N because its predicted chemical shift range (5ppm) is the smallest of the periodic table [1]. The shift from Phenyl-CH2Li to Butyl-Li is only 2 ppm and solvent dependant. NMR of this alkaline chemistry has been reviewed [2],