Abstract
Abstract At IRIS VI, in Berlin in 1991, we presented1 some preliminary results from our 3lP NMR studies of the hydrolysis of hexachloromphosphazene, P3N3C16. These studies were carried out in CDC13 solution, with added methylamine to absorb the HCl released. While those studies were in progress, a report by Gabler and Haw2 appeared of the hydrolysis i n THF solution, without added base. Their results were to some extent at variance with ours, and both they and we reported NMR evidence for species which could not be identified on the basis of a simple hydrolysis mechanism. Both they and we suggested the formation of P-0-P bridged species, but their spectra, unlike ours, showed no evidence of the P-P coupling across tlie bridge which would be expected. (Symmetrical species show second order spectra from which the coupling can often be extracted). We have therefore repeated the measurements of Gabler and Haw, and extended our own studies to include the use of other bases than methylamine.
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