Iodine Complexes in Inert Solvents. VI. Solvation Processes in Solutions of Oxygenated Solvents and Iodine, Bromine, or Sulfur Dioxide

A survey of recent literature on systems containing halogens or sulfur dioxide in aliphatic oxygenated solvents or inert solvents is given. It is shown that the classical concepts of solvation processes do not apply to these systems. It is concluded that the results are best understood with the new ``liquid-lattice penetration complex'' theory, if it is assumed that the stabilizing energy of the heterogeneous aggregates is provided by Mulliken's ``charge-transfer'' forces. A new interpretation of the term ``activity coefficient'' is given. These coefficients are shown to arise from the neglect of lattice factors.