13C and 23Na solid-state NMR spectra of organosodium compounds

For three organosodium complexes, namely triphenylmethylsodium(tmeda) (1), fluorenylsodium(pmdta) (2) and fluorenylsodium(tmeda) (3), 13C and 23Na solid‐state FT‐NMR spectra have been measured for the first time. They were analysed in terms of chemical shifts, δ(13C) and δ(23Na), and 23Na quadrupole...

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Bibliographic Details
Published in:Magnetic resonance in chemistry 2003-05, Vol.41 (5), p.373-378
Main Authors: Jost, Steffen, Günther, Harald
Format: Article
Language:English
Subjects:
13C NMR
23Na NMR
NMR
organometallic compounds
organosodium compounds
sodium quadrupole coupling
solid-state NMR
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Summary:For three organosodium complexes, namely triphenylmethylsodium(tmeda) (1), fluorenylsodium(pmdta) (2) and fluorenylsodium(tmeda) (3), 13C and 23Na solid‐state FT‐NMR spectra have been measured for the first time. They were analysed in terms of chemical shifts, δ(13C) and δ(23Na), and 23Na quadrupole coupling constants, χ(23Na). It is shown that the NMR parameters are sensitive to the structural features of the complexes and correlate well with the contact ion‐pair structures of 1–3. 23Na resonances are shielded by ring current effects of the aromatic ligands. Copyright © 2003 John Wiley & Sons, Ltd.
ISSN:0749-1581
1097-458X
DOI:10.1002/mrc.1189