SCALES OF SOLUTE HYDROGEN-BONDING - THEIR CONSTRUCTION AND APPLICATION TO PHYSICOCHEMICAL AND BIOCHEMICAL PROCESSES

The construction of scales of hydrogen-bond acidity and hydrogen-bond basicity, using 1:1 hydrogen-bond complexation constants in tetrachloromethane, is set out. These 1:1 scales can be used to develop 'effective' or 'summation' scales of hydrogen-bond acidity and hydrogen-bond basicity that are appropriate for situations in which a solute is surrounded by an excess of solvent molecules. Together with other solute descriptors that have also been developed, the summation scales of solute hydrogen-bonding can be incorporated into LSERs and QSARs that can be applied to numerous physicochemical and biochemical processes, and can be used to assess quantitatively the role of hydrogen-bonding in these processes.