Intermolecular hydrogen bonds electron transfer processes

For a complete quantitative description of the solvent effects on the properties of the distinct diastereoisomers of dendrimers 5 (G = 1) and 6 (G = 1), a multiparameter treatment was used. The reason for using such a treatment is the observation that solute/solvent interactions, responsible for the solvent influence on a given process—such as equilibria, interconversion rates, spectroscopic absorptions, etc.—are caused by a multitude of nonspecific (ion/dipole, dipole/dipole, dipole/induced dipole, instantaneous dipole/induced dipole) and specific (hydrogen bonding, electron pair donor/acceptor, and chaige transfer interactions) intermolecular forces between the solute and solvent molecules. It is then possible to develop individual empirical parameters for each of these distinct and independent interaction mechanisms and combine them into a multiparameter equation such as Eq. 2, "... 

Intermolecular charge- and proton-transfer processes, that is, the motion of the proton associated with the change of electronic structure in hydrogen-bonded complexes, are involved in many chemical reactions in solution. The study of such processes in small clusters leads to very detailed information on the reactive event. 

The discovery of the hydrogen bond was not a historical event Uke, for example, the discovery of x-rays. Rather, it was gradually realized that hydrogen binds weakly to electronegative atoms other than those it is bonded with in normal chemical bonds (Latimer and Rodebush 1920). Often, quite strong intermolecular bonds are formed. The PT in bond has become a very important subject, since the processes of life rely on coupled electron and proton transfer. 

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