Ab Initio Potential Energy Functions and Vibrational States of the Fluoronium and Chloronium Ions

Abstract

The cations FH2 + (fluoronium ion) and C1H2 + (chloronium ion) have been investigated by beam experiments and mass spectroscopy [1, 2], ion cyclotron resonance spectroscopy [3] and the molecular beam photoionization method [4]. These experimental techniques yielded rather accurate values for the proton affinities of the hydrogen halides, but gave no information on molecular structure and vibrational states of the fluoronium and chloronium ions.