Abstract
The article examines the NMR chemical shifts of common laboratory solvents as trace impurities. Any potential hydrogenbond acceptor will tend to shift the water signal downfield. This is particularly true for nonpolar solvents. In contrast, in DMSO the water is already strongly hydrogen-bonded to the solvent, and solutes have only a negligible effect on its chemical shift. For D 2O solutions there is no accepted reference for carbon chemical shifts. Researchers suggest the addition of a drop of methanol, and the position of its signal to be defined as 49.50 ppm; on this basis, the entries were recorded. The chemical shifts thus obtained are, on the whole, very similar to those for the other solvents. Alternatively, researchers suggest the use of dioxane when the methanol peak is expected to fall in a crowded area of the spectrum.
| Original language | English |
|---|---|
| Pages (from-to) | 7512-7515 |
| Number of pages | 4 |
| Journal | Journal of Organic Chemistry |
| Volume | 62 |
| Issue number | 21 |
| DOIs | |
| State | Published - 1997 |
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Gottlieb, H. E., Kotlyar, V., & Nudelman, A. (1997). NMR chemical shifts of common laboratory solvents as trace impurities. Journal of Organic Chemistry, 62(21), 7512-7515. https://doi.org/10.1021/jo971176v
Gottlieb, Hugo E. ; Kotlyar, Vadim ; Nudelman, Abraham. / NMR chemical shifts of common laboratory solvents as trace impurities. In: Journal of Organic Chemistry. 1997 ; Vol. 62, No. 21. pp. 7512-7515.
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title = "NMR chemical shifts of common laboratory solvents as trace impurities",
abstract = "The article examines the NMR chemical shifts of common laboratory solvents as trace impurities. Any potential hydrogenbond acceptor will tend to shift the water signal downfield. This is particularly true for nonpolar solvents. In contrast, in DMSO the water is already strongly hydrogen-bonded to the solvent, and solutes have only a negligible effect on its chemical shift. For D 2O solutions there is no accepted reference for carbon chemical shifts. Researchers suggest the addition of a drop of methanol, and the position of its signal to be defined as 49.50 ppm; on this basis, the entries were recorded. The chemical shifts thus obtained are, on the whole, very similar to those for the other solvents. Alternatively, researchers suggest the use of dioxane when the methanol peak is expected to fall in a crowded area of the spectrum.",
author = "Gottlieb, {Hugo E.} and Vadim Kotlyar and Abraham Nudelman",
year = "1997",
doi = "10.1021/jo971176v",
language = "אנגלית",
volume = "62",
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journal = "Journal of Organic Chemistry",
issn = "0022-3263",
publisher = "American Chemical Society",
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Gottlieb, HE, Kotlyar, V & Nudelman, A 1997, 'NMR chemical shifts of common laboratory solvents as trace impurities', Journal of Organic Chemistry, vol. 62, no. 21, pp. 7512-7515. https://doi.org/10.1021/jo971176v
NMR chemical shifts of common laboratory solvents as trace impurities. / Gottlieb, Hugo E.; Kotlyar, Vadim; Nudelman, Abraham.
In: Journal of Organic Chemistry, Vol. 62, No. 21, 1997, p. 7512-7515.
Research output: Contribution to journal › Article › peer-review
TY - JOUR
T1 - NMR chemical shifts of common laboratory solvents as trace impurities
AU - Gottlieb, Hugo E.
AU - Kotlyar, Vadim
AU - Nudelman, Abraham
PY - 1997
Y1 - 1997
N2 - The article examines the NMR chemical shifts of common laboratory solvents as trace impurities. Any potential hydrogenbond acceptor will tend to shift the water signal downfield. This is particularly true for nonpolar solvents. In contrast, in DMSO the water is already strongly hydrogen-bonded to the solvent, and solutes have only a negligible effect on its chemical shift. For D 2O solutions there is no accepted reference for carbon chemical shifts. Researchers suggest the addition of a drop of methanol, and the position of its signal to be defined as 49.50 ppm; on this basis, the entries were recorded. The chemical shifts thus obtained are, on the whole, very similar to those for the other solvents. Alternatively, researchers suggest the use of dioxane when the methanol peak is expected to fall in a crowded area of the spectrum.
AB - The article examines the NMR chemical shifts of common laboratory solvents as trace impurities. Any potential hydrogenbond acceptor will tend to shift the water signal downfield. This is particularly true for nonpolar solvents. In contrast, in DMSO the water is already strongly hydrogen-bonded to the solvent, and solutes have only a negligible effect on its chemical shift. For D 2O solutions there is no accepted reference for carbon chemical shifts. Researchers suggest the addition of a drop of methanol, and the position of its signal to be defined as 49.50 ppm; on this basis, the entries were recorded. The chemical shifts thus obtained are, on the whole, very similar to those for the other solvents. Alternatively, researchers suggest the use of dioxane when the methanol peak is expected to fall in a crowded area of the spectrum.
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AN - SCOPUS:84889582115
SN - 0022-3263
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JO - Journal of Organic Chemistry
JF - Journal of Organic Chemistry
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ER -
Gottlieb HE, Kotlyar V, Nudelman A. NMR chemical shifts of common laboratory solvents as trace impurities. Journal of Organic Chemistry. 1997;62(21):7512-7515. doi: 10.1021/jo971176v
