\begin{table}%T2
\caption{Permanent electric dipole moments in Debye of the neutral 
molecules.  References are given for those cases in which the values of the 
dipole moments have been updated since RATE99.}
  \label{dipole}
%\centerline
 {
\begin{tabular}{llllllllll}
\hline \hline
\noalign{\smallskip}
Species  & $\mu_{\rm D}$ &  Species &  $\mu_{\rm D}$ & Species  & $\mu_{\rm D}$ & Species  & $\mu_{\rm D}$ &  Species &  $\mu_{\rm D}$ \\
\noalign{\smallskip}
\hline
\noalign{\smallskip}
H$_2$  &  0  &  CH &  1.46 & CH$_2$ & 0.57 & NH  & 1.3 & CH$_3$ & 0 \\
NH$_2$ & 1.83 & CH$_4$ & 0  & NH$_3$ & 1.47 & OH  & 1.66 & H$_2$O & 1.85\\ 
HF  & 1.83 & C$_2$  & 0  & C$_2$H & 0.8 & C$_2$H$_2$ & 0 & CN & 1.45 \\ 
HNC & 2.7 & HCN & 2.98 & C$_2$H$_3$ & 1.5 & H$_2$CN & 2.54 & N$_2$ & 0 \\ 
C$_2$H$_4$ & 0 & CO & 0.11 & C$_2$H$_5$ & 0 & HCO & 1.0 & SiH & 0.12 \\
CH$_2$NH & 2.02 & SiH$_2$ & 0.18 & NO & 0.15 & C$_2$H$_6$ & 0 & H$_2$CO & 2.33 \\
HOCH & 0 & SiH$_3$ & 0 & HNO & 1.67 & SiH$_4$ & 0 & PH & 0.64 \\
CH$_3$OH & 1.7 & O$_2$ & 0 & O$_2$H & 2.09 & PH$_2$ & 0.0 & HS  & 0.76 \\ 
H$_2$O$_2$ & 1.57 & H$_2$S & 0.97 & C$_3$ & 0 & HCl & 1.08 & l-C$_3$H & 3.1 \\
c-C$_3$H$_2$ & 3.4 & H$_2$CCC & 4.1 & C$_2$N & 0.6 & C$_3$H$_3$ & 4.0 & CH$_2$CN & 3.99 \\
C$_2$O & 1.3 & CH$_3$CCH & 0.78 & SiC & 1.7 & CH$_3$CN & 3.92 & HCSi & 0.07 \\
NH$_2$CN & 0 & CH$_2$CO & 1.42 & SiCH$_2$ & ... & OCN & 0.64 & SiN & 2.3 \\
SiCH$_3$ & 0.65 & HNSi & 0.16 & CP & 0.86 & N$_2$O & 0.16 & CS  & 1.96 \\
HCP & 0.3 & CH$_3$CHO & 2.69 & CO$_2$ & 0 & SiO & 3.1 & HCS & 1.02 \\
PN & 2.75 & CH$_3$OCH$_3$ & 1.3 & C$_2$H$_5$OH & 1.44 & CH$_2$PH & 0 & H$_2$SiO & 3.82 \\
H$_2$CS & 1.65 & NO$_2$ & 0.32 & NS & 1.81 & HCOOH & 1.41 & CCl & 1.22 \\ 
PO & 1.88 & C$_4$  & 0 & HPO & 2.33 & SO & 1.55 & C$_4$H & 0.9 \\
C$_4$H$_2$ & 0 & C$_3$N & 2.2 & C$_4$H$_3$ & 0 & ClO & 1.24 & HC$_3$N & 3.6 \\
NCCN & 0 & SiC$_2$ & 2.39 & C$_3$O & 2.39 & CH$_2$CHCN & 3.89 & SiC$_2$H & 1.4 \\
SiNC & 2.03 & SiC$_2$H$_2$ & 2.5 & CCP & 3.5 & C$_2$S & 2.8 & HC$_2$P & ... \\ 
C$_2$H$_6$CO & 2.8 & C$_5$ & 0 & HCOOCH$_3$ & 1.77 & OCS & 0.71 & SiS & 1.73 \\
SiO$_2$ & 0.5 & C$_5$H & 4.3 & C$_4$N & 0.14 & C$_5$H$_2$ & 5.9 & SO$_2$ & 1.63 \\
S$_2$ & 0 & CH$_3$C$_4$H & 1.21 & SiC$_3$ & 4.2 & SiC$_3$H & 2.0 ? & CH$_3$C$_3$N & 4.91 \\
HS$_2$ & 1.4 & H$_2$S$_2$ & 1.2 & C$_3$P & 2.77 & C$_3$S & 3.7 & C$_6$ & 0 \\
C$_6$H & 5.0 & C$_6$H$_2$ & 6.2 & C$_5$N & 3.38 & HC$_5$N & 4.33 &SiC$_4$ & 6.3 \\
C$_6$H$_6$ & 0 & C$_4$P & 4.18 & C$_4$S & 3.8 & C$_7$ & 0 & C$_7$H & 4.5 \\
C$_7$H$_2$ & 7.7 & CH$_3$C$_6$H & 1.5 & CH$_3$C$_5$N & 5.75 & C$_8$ & 0 & C$_8$H & 5.0 \\
C$_7$N & 3.0 & C$_8$H$_2$ & 8.2 & HC$_7$N & 4.62 & C$_9$ & 0 & C$_9$H & 4.7 \\ 
C$_9$H$_2$ & 9.7 & CH$_3$C$_7$N & 5.47 & C$_{10}$ & 0 & C$_9$N  & 3.3 & HC$_9$N & 4.84 \\
\noalign{\smallskip}
\hline
\end{tabular}}
\smallskip
Notes: c-C$_3$H = 2.4D; HCCCCH = 0D;
H$_2$C$_3$H(propargyl) = 0.14D; H$_2$CCCC = 4.1D from Oswald \& Botschwina (\cite{Oswald95}); HCSi from Smith et~al. (\cite{Smith01}); HCS from Ochsenfeld et~al. (\cite{Ochsenfeld99}); HS$_2$ from Zhuo et~al. (\cite{Zhuo94}); CCP from El-Yazal et~al. (\cite{El-Yazal97}); CCl from Largo et~al. (\cite{Largo01}); H$_2$SiO from Ma \& Schaeffer (\cite{Ma94}); CH$_2$CN from Gutsev \& Adamowicz (\cite{Gutsev95}); SiCH$_3$ from Kaiser \& Osamura (\cite{Kaiser05}); C$_3$P from del~Rio et~al. (\cite{delRio96});  C$_4$P from Yu et~al. (\cite{Yu05}); C$_4$S from Pascoli \& Lavendry (\cite{Pascoli98}); C$_5$N from Botschwina (\cite{Botschwina96});  C$n$H$_2$, $n = 5$--9, from Maluendes \& McLean (\cite{Maluendes92}).
\end{table}