\begin{table}%t2
\caption{\label{tab2}\ion{Fe}{ii} energy levels for the 3d$^{6}$~($^{3}$H)4f subconfiguration. } 
\small%\centering
\par
\begin{tabular}{crcrcrcrcrcrrrr}
\hline\hline\noalign{\smallskip}
\multicolumn{1}{c}{Design-}&
\multicolumn{1}{c}{$J$}&
\multicolumn{1}{c}{Energy}&
\multicolumn{1}{c}{c$-$o}&
\multicolumn{1}{c}{Design-}&
\multicolumn{1}{c}{$J$}&
\multicolumn{1}{c}{Energy}&
\multicolumn{1}{c}{c$-$o}&
\multicolumn{1}{c}{Design-}&
\multicolumn{1}{c}{$J$}&
\multicolumn{1}{c}{Energy}&
\multicolumn{1}{c}{c$-$o}
\\
\multicolumn{1}{c}{ation}&
\multicolumn{1}{c}{}&
\multicolumn{1}{c}{cm$^{-1}$}&
\multicolumn{1}{c}{cm$^{-1}$}&
\multicolumn{1}{c}{ation}&
\multicolumn{1}{c}{}&
\multicolumn{1}{c}{cm$^{-1}$}&
\multicolumn{1}{c}{cm$^{-1}$}&
\multicolumn{1}{c}{ation}&
\multicolumn{1}{c}{}&
\multicolumn{1}{c}{cm$^{-1}$}&
\multicolumn{1}{c}{cm$^{-1}$}
\\
\hline 
6[9]   & 19/2 & 122~954.180&$+$14.465\\
       & 17/2 & 122~952.730&$+$20.251\\
\\
6[8]   & 17/2 & 123~007.910 &$+$26.752 &  5[8] & 17/2 & 123~219.200&$-$10.198 \\
       & 15/2 & 122~910.920 &$-$16.531 &       & 15/2 & 123~193.090&$-$17.864 \\
\\
6[7]   & 15/2 & 123~018.430 &$+$34.439 &  5[7]& 15/2 & 123~238.440&$-$6.653   &4[7] & 15/2 & 123~396.250&$-$33.027\\
       & 13/2 & 123~015.400 &$+$40.333 &      & 13/2 & 123~168.680&$-$33.645   &     & 13/2 & 123~355.490&$-$36.436\\
\\
6[6]   &13/2  & 122~990.620 &$-$2.720 &  5[6]& 13/2 & 123~249.650&$-$6.519   &4[6] &13/2 & 123~414.730&$-$32.244\\
       &11/2  & 123~037.430 &$+$26.878 &      & 11/2 & 123~270.340&$+$0.899   &     &11/2 & 123~427.119&$-$33.418\\
\\
6[5]   &11/2  & 123~002.288 &$+$33.455 &  5[5]& 11/2 & 123~251.470&$-$1.320   &4[5] & 11/2 & 123~441.100&$-$26.889\\
       &9/2   & 123~026.350 &$+$18.587 &      &  9/2 & 123~269.378&$+$2.937   &     &9/2  & 123~435.468&$-$17.705\\
\\
6[4]   &9/2   & 122~988.215 &$+$30.836 &  5[4]&  9/2 & 123~258.994&$-$1.556   &  4[4] & 9/2 & 123~460.690&$-$26.898\\
       &7/2   & 122~980.408 &$+$26.752 &     &  7/2  & 123~258.021&$-$1.362   &       &7/2 & 123~435.277&$-$16.103\\
\\
6[3]   &7/2   & 122~946.419 &$+$21.403 &   5[3] & 7/2 & 123~235.165&$+$3.471   & 4[3] & 7/2 & 123~451.449&$-$21.115 \\
       &5/2   &(122~967.896)&          &        & 5/2 & (123~248.017)&  &     & 5/2 &  123~430.181&$-$16.906\\
\\
       &      &           & &   5[2] & 5/2 & 123~211.159&$-$1.017 &   4[2] & 5/2 & (123~401.927) \\
       &      &           & &        & 3/2 & 123~213.323&$-$12.585 &        & 3/2 & (123~384.857)&\\
\\
       &      &           & &        &    &            &     &4[1] & 3/2& (123~356.410)    \\
       &      &           & &        &    &            &     &  & 1/2 &   (123~343.705)    \\
\hline
\end{tabular}
\tablefoot{Energies
between parentheses are predicted values.}
\end{table}