ISSN:
0749-1581
Keywords:
LIS
;
1H NMR
;
N,N-Dimethylformamide
;
N,N-Dimethylacetamide
;
Point methyl model limitations
;
Chemistry
;
Analytical Chemistry and Spectroscopy
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
The shifts induced in the 1H NMR spectra of N,N-dimethylformamide and N,N-dimethylacetamide by Pr(fod)3, have been measured by the reciprocal method and the results analysed using various models of the substrate molecules. Only those models which take full account of the stereochemistry of the methyl groups give a reasonable description of the induced shifts. It is also demonstrated that there is only one time-averaged position of the lanthanide ion in the framework of the substrate molecule which adequately fits the experimental results.
Additional Material:
4 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/mrc.1260270511
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