Ligand exchange processes on solvated lithium cations. VI. Determination of coordination numbers by ligand substitution and 7Li NMR
Schmeißer M, Zahl A, Scheurer A, Puchta R, van Eldik R (2010)
Publication Type: Journal article
Publication year: 2010
Journal
Publisher: American Chemical Society
Book Volume: 132
Pages Range: 7282-7284
Journal Issue: 21
Abstract
On the basis of 7Li NMR studies the coordination mode of phenantroline (phen) and bipyridine (bipy) to Li+ ions was found to be [Li(phen)2]+ and [Li(bipy)2]+ in the weakly coordinating solvent nitromethane. A large chemical shift of the 7Li signal indicated a strong interaction between the ligand and the metal center. The related sp2-hybridized N-donor ligand 2, 2′-bis[(4S)-4-benzyl-2-oxazoline] (biox) showed a negligible effect on the 7Li shift, suggesting that almost no interaction occurs between the Li+ center and biox as compared to Li+ and the solvent γ-butyrolactone. Corresponding DFT (RB3LYP/LANL2DZp) calculations have clearly indicated that the poor coordination of biox is not caused by steric effects but rather by the electronic nature of the heterocyclic biox system. © 2010 Verlag der Zeitschrift für Naturforschung.
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How to cite
APA:
Schmeißer, M., Zahl, A., Scheurer, A., Puchta, R., & van Eldik, R. (2010). Ligand exchange processes on solvated lithium cations. VI. Determination of coordination numbers by ligand substitution and 7Li NMR. Journal of the American Chemical Society, 132(21), 7282-7284.
MLA:
Schmeißer, Matthias, et al. "Ligand exchange processes on solvated lithium cations. VI. Determination of coordination numbers by ligand substitution and 7Li NMR." Journal of the American Chemical Society 132.21 (2010): 7282-7284.
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