Table and Figure shows the formation of H3SiO4 -from OSAZ. Note that the H3SiO4 -species is charge balanced by a distant H3O + formed by concerted transfers from the freed proton (fig. ) and is analogous to figure 5F. The energy profiles corresponding to the configurations in figures 7 and 8 are shown in figure . Neither dipolar complex I nor dipolar complex II was successfully optimized in this system.