\begin{table}%t1
\par
\caption{\label{tab1}Line parameters for the all the species and data reported in this paper. When two spatial resolutions are indicated, we refer to the {\it HBPW}'s corresponding to the IRAM 30-m and the SEST telescopes respectively. $^{(a)}$ Observed at the CSO. $^{(b)}$ Observed at the Effelsberg 100-m telescope. See Sect.~\ref{obs} for details.}
%\centering
\par
\begin{tabular}{l c c c } 
\hline \hline  \noalign{\smallskip}
Molecule	&Transition		&Frequency	&{\it HPBW	}	\\
		&    			&(GHz)  	&(arcsec)   	\\\noalign{\smallskip} \hline\noalign{\smallskip}
$^{12}$CO	& $  J=2$--1 		& 230.538000    & 11 		\\
$^{13}$CO 	& $  J=2$--1 		& 220.398686 	& 22/44		\\
C$^{18}$O	& $  J=1$--0 		& 109.782160    & 22/44		\\
          	& $  J=2$--1 		& 219.560357 	& 11 		\\
CS		& $  J=2$--1		& 97.980950	& 24		\\
C$_2$H  	&$  N=1$--0, $  J=3$/2--1/2 	&   		&     		\\
        	&$  F=2$--1 		&87.316925 	&28/56 		\\
        	&$  F=1$--0 		&87.328624 	&28/56 		\\
        	&$  N=1$--0, $  J=1$/2--1/2 	&   		&		\\
        	&$  F=1$--1 		&87.402004 	&28/56 		\\
        	&$  F=0$--1 		&87.407165 	&28/56 		\\
		&$  N=3$--2, $  J=7$/2--5/2	&	&		\\
		&$  F=4$--3			&262.004260	&28$^{(a)}$	\\
		&$  F=3$--2			&262.006480	&28$^{(a)}$	\\
		&$  N=3$--2, $   J=5$/2--3/2 	&		&		\\
		&$  F=3$--2			&262.064990	&28$^{(a)}$	\\
		&$  F=2$--1			&262.067460 	&28$^{(a)}$	\\
\cCCCH  	&$  N=2_{12}$--1$_{11}$, $  J=5$/2--3/2 & 	&     		\\
        	&$  F=3$--2 		&91.494349 	&27/54 		\\
        	&$  F=2$--1 		&91.497608 	&27/54 		\\
        	&$  N=2_{12}$--1$_{11}$, $  J=3$/2--1/2 &	&		\\
        	&$  F=1$--0 		&91.692752 	&27/54		\\
        	&$  F=2$--1 		&91.699471 	&27/54		\\
\lCCCH  	&$  J=9$/2--7/2             &     		&		\\
        	&$  F=5$--4 (f)		&97.995166	&25/50		\\
        	&$  F=4$--3 (f)		&97.995913	&25/50		\\
        	&$  F=5$--4 (e)		&98.011611	&25/50		\\
        	&$  F=4$--3 (e)		&98.012524	&25/50		\\
\cCCCHH 	&1$_{1,0}$--1$_{0,1}$	&18.343145	&54$^{(b)}$	\\
        	&2$_{1,2}$--1$_{0,1}$	&85.338898	&28/56		\\
\lCCCHH		&1$_{0,1}$--0$_{0,0}$	&20.792590	&48$^{(b)}$	\\
        	&3$_{3,0}$--2$_{2,1}$	&216.27875	&11		\\
\cccch  	&$  N=9$--8, $  J=19$/2--17/2	&		&		\\
        	&$  F=9$--8 		&85.634006 	&28/56		\\
        	&$  F=10$--9		&85.634017 	&28/56		\\
        	&$  N=9$--8, $  J=17$/2--15/2	&		&		\\
        	&$  F=8$--7 		&85.672581 	&28/56		\\
        	&$F=8$--8 		&85.672583 	&28/56		\\
$l$-\cccch$_2$	&$11_{0,11}{-}10_{0,10}$	&98.245016	&24		\\
\chhhcch	&$  J=5$--4                 &     		&		\\
        	&$  K=2$       		&85.450730	&28		\\
        	&$  K=1$       		&85.455622	&28		\\
        	&$  K=0$       		&85.457272	&28		\\
\csh	  	&$^2\Pi_{3/2}$ $  J=59$/2--57/2 e	&81.777893	&28		\\
    	  	&$^2\Pi_{3/2}$ $  J=59$/2--57/2 f	&81.801247	&28		\\
HN$^{13}$C	&$  J=1$--0			&		&		\\
		&$  F=0$--1			&87.090735	&27		\\
		&$  F=2$--1			&87.090859	&27		\\
		&$  F=1$--1			&87.090942 	&27		\\
HC$_3$N		&$  J=9$--8			&81.881468	&28		\\
\hline
\end{tabular}
\end{table}