\begin{table}%t2
\caption{Atomic data of the \ion{Fe}{ii} transitions$^a$, the  sensitivity coefficients~${\cal Q}^b$, and the isotope mass shift constants~$k_{\rm MS}$$^c$. Estimated errors are given in parentheses.}\label{tbl-2}
%\centerline
$${
\begin{tabular}{c r@{.}l r@{.}l r@{.}l l}
\hline \hline
Mlt. & \multicolumn{2}{c}{$\lambda_{\rm vac}$, } &
\multicolumn{2}{c}{$f$} & \multicolumn{2}{c}{\hspace{-0.5cm}${\cal Q}$} &
$k_{\rm MS}$, \\ 
No.$^d$  &  \multicolumn{2}{c}{\AA} & \multicolumn{2}{c}{ } & 
\multicolumn{2}{c}{ } & \hspace{-0.2cm}cm$^{-1}$~amu \\
\hline
1u & 2600&1725(1) & 0&23878 & 0&035(4) & --60(20)\\
1u & 2586&6496(1) & 0&06918 & 0&039(4) & --60(20)\\
2u & 2382&7642(1) & 0&320   & 0&035(4) & --63(20)\\
2u & 2374&4603(1) & 0&0313  & 0&038(4) & --63(20)\\
3u & 2344&2130(1) & 0&114   & 0&028(4) & --60(20)\\
7u & 1611&20034(8)& 0&00136 & 0&018(5) & --67(40)\\
8u & 1608&45080(8)& 0&0580  & --0&021(5)& \hspace{0.18cm}67(40)\\
\hline
\end{tabular}}$$
\medskip
$^a$ Based on the compilation of Murphy et~al. (\cite{Murph03}); \\ 
$^b$ Defined in Sect.~4; $^c$ Calculated by Kozlov et~al. (\cite{Kozl04}); \\
$^d$ Multiplet numbers from Morton (\cite{Mort03}).
\end{table}