ISSN:
0749-1581
Keywords:
NMR
;
19F NMR
;
2D EXSY NMR
;
AM1
;
1,8-diarylnaphthalenes
;
restricted rotation
;
Chemistry
;
Analytical Chemistry and Spectroscopy
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
Interactions between polar groups and π systems were studied for stacked aryls in 1-fluorophenyl-8-arylnaphthalenes, in which an ‘electron-rich’ aryl ring is forced in a stacked geometry with an ‘electron-poor’ fluorophenyl ring; the rotation process was examined using different NMR techniques (lineshape analysis, 2D EXSY). The ΔG≠S obtained when considering 1H and 19F nuclei were perfectly comparable. Semi-empirical calculations (AM1) were performed to evaluate ΔG≠S for the rotation process, and the results are compared with the experimental NMR values.
Additional Material:
8 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/mrc.1260330413
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