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NMR Spectra of Alkali and Halogen Nuclei in Alkali and Halogen Salts

1978; De Gruyter; Volume: 33; Issue: 8 Linguagem: Inglês

10.1515/zna-1978-0811

1865-7109

W. Gauß, S. Günther, Anton Haase, M. Kerber, David-Emanuel Keßler, J. Kronenbitter, H. Krüger, O. Lutz, A. Nolle, Paul-Gerhard Schrade, M. Schüle, G. E. Siegloch,

Solid-state spectroscopy and crystallography

NMR signals of 7 Li, 23 Na, 35 Cl, 39 K, 79 Br, 87 Rb and 127 I have been measured in various alkali and halogen salt powders relative to well defined aqueous solutions. With the known shielding constants of some of these solutions the nuclear magnetic shielding constants of the alkali and chlorine nuclei in crystalline powders were evaluated in the atomic reference scale. The theoretical values of the shielding constants in alkali halides do not agree even in the order of magnitude with the experimental ones in some cases. For 23 Na first-order and second-order quadrupole patterns have been observed and the quadrupole coupling constants are given.