The preparation of dialkylaminofluorophosphoranes by the thermal decomposition of dialkylamine–phosphorus pentafluoride adducts

Phosphorus pentafluoride forms adducts with secondary amines. When heated, these break down to give dialkylaminotetrafluorophosphoranes. The action of excess of secondary amine on phosphorus pentafluoride or dialkylaminotetrafluorophosphoranes gives bisdialkylaminotrifluorophosphoranes. Physical properties are reported for the dialkylaminofluorophosphoranes, and the bonding is discussed.