HYDROGEN BONDING IN GAS-PHASE ANIONS. AN EXPERIMENTAL INVESTIGATION OF THE INTERACTION BETWEEN CHLORIDE ION AND BRONSTED ACIDS FROM ION CYCLOTRON RESONANCE CHLORIDE EXCHANGE EQUILIBRIA.

Article abstract of DOI:10.1021/ja00315a008

Ion cyclotron resonance chloride transfer equilibrium measurements have been used to establish an accurate scale of chloride ion binding energies for a variety of inorganic acids, carboxylic acids, alcohols, aldehydes, ketones, amines, and alkyl and aryl halides. Variation of chloride ion binding energy with gas-phase acidity reveals a far more pronounced effect of electrostatic interactions than existed for the fluoride ion. Results indicate in many cases multiple binding site interactions occur. Comparison of chloride affinities with bulk solvation abilities reveals similarities and differences between gas-phase and solution behavior that may be understood in terms of strength of interaction, molecular size, and molecular shape.