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The 19F NMR spectra of a series of 2,4‐disubstituted fluorodiazadiphosphetidines of general formula I (Y = Me, Et, NEt2, and Ph) and of a series of fluorophosphadiazetidinones of general formula II (Y = F, Me, Et, Ph) and III (Y = Me, Et) have been obtained. magnified image We report here details of the spectra and their interpretation, including some results from 1H resonance for I. The spectra were recorded over a range of temperatures and, in the case of the HA 100 spectrometer, with proton noise decoupling. The results are discussed in terms of molecular conformation and of intramolecular exchange.
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Harris et al. (1972) studied this question.
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