\begin{table}%t1
      \caption{\label{table1}Relative energies (kcal/mol) for the relevant intermediates.}
 %\centering
\par
 %\centering
\par
\begin{tabular}{lcc}
\hline\hline\noalign{\smallskip}
Isomer & ${\Delta}E$~(MP2) &  ${\Delta}E$(CCSD(T)) \\
\hline\noalign{\smallskip}
CH$_{3}$COOHNH$_{3}^{+}$ \ \ \  I1 ($^{2}$A$^{\prime}$) & 20.42 &  19.37 \\
CH$_{2}$COOHNH$_{4}^{+}$  \ \ \  I2 ($^{2}$A$^{\prime\prime}$) & 0.00 & 0.00 \\
NH$_{3}$CH$_{2}$COHOH$^{+}$ \   I3 ($^{2}$A) & 24.68 & 23.31 \\
NH$_{3}$CH$_{2}$COHOH$^{+}$ \   I4 ($^{2}$A) & 25.62 & 24.35 \\
CH$_{3}$COOHNH$_{3}^{+}$  \ \ \  I5 ($^{2}$A$^{\prime}$) & 33.28 & 32.64 \\
CH$_{3}$COOHNH$_{3}^{+}$ \ \ \  I6 ($^{2}$A) & 29.35 & 26.22 \\
CH$_{3}$COOHNH$_{3}^{+}$  \ \ \  I7 ($^{2}$A$^{\prime}$) & 35.36 & 32.96 \\
\hline
\end{tabular}
 \end{table}