Collect. Czech. Chem. Commun. 1984, 49, 392-397

Hydrolysis of amidochloro-cyclo-triphosphazenes

Milan Kouřil, Lubomír Mezník and Karel Dostál

Department of Inorganic Chemistry, J. E. Purkyně University, 611 37 Brno


It was found by 31P NMR spectroscopy and paper chromatography that amidochloro-cyclo-triphosphazenes N3P3Cl4(NH2)2 and N3P3Cl5NH2 undergo hydrolysis in acidic, neutral, and alkaline medium with preservation of their cyclic skeleton to give triphosphazane anions (NHPO2)33-. As found spectroscopically, the hydrolysis of N3P3Cl4(NH2)2 in acidic medium leads initially to formation of an intermediate of the composition N3P3(OH)4(NH2)2, which speaks for the preferential hydrolytic cleavage of P-Cl bonds compared to exogenic P-NH2 bonds in the molecule of this compoud.