Electron impact studies. LXXXVIII. formation of an adduct between the trifluoroacetate anion and perfluoroacetic anhydride by ion cyclotron resonance

Abstract

The gas phase reaction between the trifluoroacetate anion and perfluoroacetic anhydride produces a 1 : 1 adduct. The decompositions of this adduct suggest a tetrahedral species rather than a loose association complex. If this is so, this constitutes the first direct observation of the formation of a tetrahedral intermediate produced by anionic displacement at a carbonyl centre.