\begin{table}%t5
\caption{\label{t:dnc}Hyperfine parameters$^a$ (kHz) of DNC in comparison to previous 
         experimental and present quantum-chemically calculated values.}
%\centerline
{
\par
\begin{tabular}{lccc}
\hline 
\hline
Parameter   & \multicolumn{3}{c}{Value} \\
\hline
            & \multicolumn{1}{c}{This work} & 
   \multicolumn{1}{c}{\citet{bechtel:hnc-dnc}} & \multicolumn{1}{c}{ab initio} \\
\hline
$eQq$(N) & +288.2~(71)  & +294.7~(131) & +309.6  \\
$C_I$(N) &   +4.91~(63) &   +5.01~(99) &   +5.54 \\
$eQq$(D) & +265.9~(83)  & +261.9~(145) & +257.6  \\
$C_I$(D) & $-$0.60$^b$  &     $-$      & $-$0.60 \\
$S$(ND)  & $-$1.35$^b$  &     $-$      &     $-$ \\
\hline
\end{tabular}}
\medskip
\par
$^a$ Numbers in parentheses are one standard deviation in units 
of the least significant figures.\\
$^b$ Kept fixed to computed values in the analysis.
\end{table}