\(\underset{\begin{smallmatrix} ({{H}_{2}}S{{O}_{4}}) \\ 2-\,oxo\,group \end{smallmatrix}}{\mathop{\begin{matrix} \begin{matrix} O \\ || \\ \end{matrix} \\ HO-S-OH \\ || \\ O \\ \end{matrix}}}\,\) |
\(\underset{\begin{smallmatrix} ({{H}_{2}}S{{O}_{3}}) \\ 1-\,oxo\,group \end{smallmatrix}}{\mathop{\begin{matrix} O \\ || \\ HO-S-OH \\ \end{matrix}}}\,\) |
\(\underset{\begin{smallmatrix} ({{H}_{3}}P{{O}_{3}}) \\ 1-\,oxo\,group \end{smallmatrix}}{\mathop{\begin{matrix} \begin{matrix} O \\ || \\ \end{matrix} \\ HO-P-OH \\ | \\ H \\ \end{matrix}}}\,\) |
\(\underset{\begin{smallmatrix} ({{H}_{3}}P{{O}_{4}}) \\ 1-\,oxo\,group \end{smallmatrix}}{\mathop{\begin{matrix} \begin{matrix} O \\ || \\ \end{matrix} \\ HO-P-OH \\ | \\ \,\,\,OH \\ \end{matrix}}}\) |