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13C and 23Na Solid-State NMR Spectra of Organosodium Compounds; Part II

Jost S., Günther H.

Polish Journal of Chemistry

2006

Vol. 80, nr 7

1141-1153

For three organosodium complexes, diphenylmethylsodium (tmeda) (1), diphenylmethylsodium (pmdta) (2), and fluorenylsodium (tmpda) (3), 13C and 23Na solid state NMR spectra have been measured for the first time. They were analysed in terms of chemical shifts delta(13C) and sigma(23Na) as well as 23Na quadrupole coupling constants, chi(23Na). Due to non-equivalent 23Na atoms in the unit cellMQS-MAS spectra were used to resolve the individual 23Na resonances. The sensitivity of the NMR parameters for the structural features of the complexes is demonstrated.