ISSN:
0749-1581
Keywords:
15N CP MAS NMR
;
Tautomerism
;
Pyrazoles
;
Hydrogen bonds
;
Chemistry
;
Analytical Chemistry and Spectroscopy
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
The 15N chemical shifts of thirteen NH-pyrazoles in the solid state and of seven NH-pyrazoles in [2H8] THF solution at 170-175 K (with frozen annular tautomerism) are reported. The solid-state values are discussed using an additive model. The differences in chemical shifts between the solid state and solution are due to the different intermolecular hydrogen bonds present in the various environments.
Additional Material:
5 Tab.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/mrc.1260321110
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