The ionic hydrogen bond

Ionic hydrogen bonds are significant in many aspects of chemistry. The basic properties of these bonds have been established in the last four decades, and their study has developed into a mature quantitative science. Specifically, mass spectrometric cluster studies have provided a quantitative understanding of the following forces: Correlations between bond strengths and the relative acidities and basicities of the components; unconventional, internal, and polydentate bonds; hydrogen-bond networks; effects on acidities and basicities; biomolecules and the condensed phase; partial and bulk solvation; large clusters and single ion solvation energies; and cluster-based analysis of solvation factors.