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Deuterium nuclear magnetic resonance spectroscopy. 1—Larmor frequency ratio, referencing and chemical shift

✍ Scribed by Jasim M. A. Al-Rawi; George Q. Behnam; Nihad I. Taha

Publisher
John Wiley and Sons
Year
1981
Tongue
English
Weight
339 KB
Volume
16
Category
Article
ISSN
0749-1581

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✦ Synopsis

Abstract

Precise values for the ratio of the Larmor frequencies, w~1H~/w~2H~, were measured at constant field for various organic compounds. The values of the Larmor frequency ratio depend on carbon‐hydrogen bond hybridization. The best ratio for the ghost referencing of ^2^H NMR spectra was then determined (6.514399862). This value enables an accurate ghost reference for any ^2^H NMR spectrum to be derived from the observed ^1^H NMR frequency of the normal internal reference. Deuterium and proton chemical shifts measured from internal, partially deuteriated TMS under the same conditions are shown to be the same.

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