The preparation and analysis of fluoro-polyphosphates by 19F, 31P, 2D 19F-31P HETCOR and 2D 31P-31P COSY NMR

A complex mixture of fluoro-polyphosphates (FPPs) was prepared by heating NaF and sodium tripolyphosphate (STPP). NMR results demonstrated that the mixture contains four kinds of fluoro-phosphates, which are monofluoro-phosphate (MFP), monofluoro-di-polyphosphate (MFDPP), monofluoro-tripolyphosphate (MFTPP), difluoro-tripolyphosphate (DFTPP).