\\ Species Tag:        &   42008 & Name:&  CH2DCN          
\\ Version:            &       1 & & Acetonitrile,
\\ Date:       & December 2009   & & $^2$H isotope
\\ Contributor:& H.S.P.M\"uller  & & 
\\             &                 & & 
\\ Lines Listed:       &    3002 & Q(300.0)=&    9187.6884
\\ Freq. (GHz) $<$     &    1511 & Q(225.0)=&    5965.9555
\\ Max. J:             &      88 & Q(150.0)=&    3247.0623
\\ LOGSTR0=            &    -7.0 & Q(75.00)=&    1148.5664 
\\ LOGSTR1=            &    -5.7 & Q(37.50)=&     406.7322 
\\ Isotope Corr.:      &  -3.821 & Q(18.75)=&     144.3104
\\ Egy. (cm$^{-1}$) $>$&     0.0 & Q(9.375)=&      51.3918
\\ $\mu_a$ = & 3.9201            & A=& 121074.5
\\ $\mu_b$ = & 0.1735            & B=&   8759.2
\\ $\mu_c$ = &                   & C=&   8608.5
\headend 

This entry is a combined CDMS and JPL entry.
The latest combined fit has been reported by
(1) H. S. P. M\"uller; B. J. Drouin, and J. C. Pearson, 2009, \emph{Astron. Astrophys.} 506, 1487.
This work provides new data between 277 and 1197 GHz. Additional data were taken from
(2) M. Le Guennec, G. Wlodarczak, J. Burie, and J. Demaison, 1992, \emph{J. Mol. Spectrosc.} 154, 305;
and three microwave lines from
(3) L. F. Thomas, E. J. Sherrard, and J. Sheridan, 1955, \emph{Trans. Faraday Soc.} 51, 619.
The low symmetry of the molecule causes a small $b-$dipole moment component. Some of the corresponding transitions were observed in (2). However, predictions for $K_a =$ 2 $-$ 1 should be viewed with caution. All higher $K_a$ $b-$type transitions have been omitted. The predictions for the remainder of the transitions should be quite reliable.
Note: Spin-statistics do not matter for this low symmetry ($C_S$) isotopolog.
The dipole moment has been derived from the main isotopolog, see d041001.cat, taking into account the rotation of the inertial axes. The magnitude of the $b-$component should be taken with some care.