Charge-transfer properties of hydrogen bonds. III. Charge-transfer theory and the relation between the energy and the enhancement of dipole moment of hydrogen-bonded complexes

Abstract

An extension of Mulliken's charge-transfer theory leads to a relation between the enthalpy of formation and the enhancement of the dipole moment for hydrogen-bonded complexes. Extensive experimental data are in accord with this theoretical prediction. It is shown conclusively that the proton transfer effect is not responsible for the enhancement of the dipole moment in these systems.