Chemistry of phosphorus fluorides. Part III. The reaction of thiophosphoryl-fluoride with dimethylamine and some properties of the dimethylaminothio- phosphoryl fluorides

Abstract

Dimethylamine reacts with thiophosphoryl fluoride with non-integral stoichiometry to yield the volatile compound dimethylaminothiophosphoryldifluoride and the solid products contained hexafluoro-phosphate and difluorodithiophosphate ions, and an unstable complex ion containing phosphorus and fluorine. The reaction of dimethylaminothiophosphoryldifluoride with dimethylamine to form bis-(dimethylamino)thiophosphorylfluoride has also been studied. The solid residues of this reaction contained hexafluorophosphate and difluorodithiophosphate ions and an unidentified phosphorus-fluoride salt. Dimethylaminothiophosphoryldifluoride did not complex with boron trifluoride but reacted with hydrogen halides to yield the halogenothiophosphoryldifluorides. Physical and spectroscopic data on the alkylaminothiophosphoryl fluorides are reported.