Standard enthalpies of formation and lattice energies of alkylammonium halides. Part 2. Ethylammonium halides

Abstract

The standard enthalpies of formation of mono-, di-, and tri-ethylamine hydro-chlorides, -bromides, and -iodides, NEt_nH_4–nX (X = Cl, Br, or I; 1 ⩽n⩽ 3) have been determined using a solution-reaction method; extrapolated values for the quaternary salts, NEt₄X (X = Cl, Br, or I) have been estimated. Lattice energies have been computed from these data using semi-empirical methods and also using available proton affinity data and appropriate thermodynamic cycles.