Low temperature 13C n.m.r. spectra of sodium and lithium enolates of β-diketones (MeCOCHRCOMe, R![[double bond, length half m-dash]](https://www.rsc.org/images/entities/char_e006.gif)
H, Me or Et) provide evidence concerning ionic bonding and the effect of steric hindrance on alkali metal chelation.
M. Raban and D. Haritos, J. Chem. Soc., Chem. Commun., 1978, 965 DOI: 10.1039/C39780000965
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