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  • 1
    Electronic Resource
    Electronic Resource
    The 15N-isotopomers of cis- and trans-difluorodiazine; A 19F NMR investigation of the two [AX]2 spin systems of 15N2F2 (1995)
    Chichester : Wiley-Blackwell
    Organic Magnetic Resonance 33 (1995), S. 817-822 
    Details
    ISSN: 0749-1581
    Keywords: NMR ; 19F ; 15N ; 14N ; DSYMPCD ; DCYMPCD ; WIN-DAISY ; N2F2 ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The decomposition of 15N3F at -20°C leads to cis- and trans-15N2F2. The corresponding 19F NMR spectra were analysed as [AX]2 systems. 19F, 15N and 14N NMR spectra were simulated using the novel PC program systems DSYMPCD, DCYMPCD and WIN-DAISY running under WIN-NMR. Stereospecific coupling constants were obtained for both isomers. Comparison of the 19F NMR spectra from both the [1/2A1/2X]2 and the [1A1/2X]2 systems in 15N2F2 and 14N2F2 overcomes the inherent ambiguities of the [AX]2 analysis.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/mrc.1260331009
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