\\ Species Tag:        &   51004 & Name:&  HCCNC  
\\ Version:            &       1 & & Ethynyl
\\ Date:       &  Dec. 1994      & & isocyanide 
\\ Contributor:&  M. L. Delitsky & &
\\             &  H. M. Pickett  & &
\\ Lines Listed:       &     563 & Q(300.0)=&    3775.7021
\\ Freq. (GHz) $<$     &  991.05 & Q(225.0)=&    2832.7507
\\ Max. J:             &      99 & Q(150.0)=&    1888.7322
\\ LOGSTR0=            &   -10.0 & Q(75.00)=&     944.7917
\\ LOGSTR1=            &  -100.0 & Q(37.50)=&     472.8781
\\ Isotope Corr.:      &   0.0   & Q(18.75)=&     236.9363
\\ Egy. (cm$^{-1}$) $>$&    0.0  & Q(9.375)=&     118.9708 
\\ $\mu_a$ = & 2.93              & A=&        
\\ $\mu_b$ = &                   & B=&4967.838
\\ $\mu_c$ = &                   & C=&          
\headend
The observed frequency measurements  were taken from: A. Guarnieri, R.
Hinze, M. Kr\"uger and H. Zerbe-Foese, 1992, J. Mol.\ Spect.\ {\bf 156},
39. M. Kr\"uger, W. Stahl and H. Dreizler, 1992, J. Mol.\ Spect.\ {\bf
158}, 298. The quadrupole coupling values were investigated in M.
Kr\"uger, above. Detailed field gradients and quadrupole coupling
constants are presented in D. Cremer and M. Kr\"uger, 1991, J. Phys.\
Chem.\ {\bf 96}, 3239.

The dipole moment was taken from M. Kr\"uger, H. Dreizler, D. Preugschat
and D. Lentz, 1991, Angew.\ Chem.\ Int.\ Ed.\ Engl.\ {\bf 30}, 1644.