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

✍ Scribed by Steffen Jost; Harald Günther

Publisher
John Wiley and Sons
Year
2003
Tongue
English
Weight
217 KB
Volume
41
Category
Article
ISSN
0749-1581

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✦ Synopsis

Abstract

For three organosodium complexes, namely triphenylmethylsodium(tmeda) (1), fluorenylsodium(pmdta) (2) and fluorenylsodium(tmeda) (3), ^13^C and ^23^Na solid‐state FT‐NMR spectra have been measured for the first time. They were analysed in terms of chemical shifts, δ(^13^C) and δ(^23^Na), and ^23^Na quadrupole coupling constants, χ(^23^Na). 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. ^23^Na resonances are shielded by ring current effects of the aromatic ligands. Copyright © 2003 John Wiley & Sons, Ltd.

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