\\ Species Tag:        &   52010 & Name:&  CH2F2         
\\ Version:            &       1 & &Difluoro methane
\\ Date:       & Nov. 1989       & &
\\ Contributor:& H. M. Pickett & &
\\             &                 & &
\\ Lines Listed:       &   11942 & Q(300.0)=&    55398.785
\\ Freq. (GHz) $<$     &    3624 & Q(225.0)=&    34017.324
\\ Max. J:             &      80 & Q(150.0)=&    17992.842
\\ LOGSTR0=            &    -7.9 & Q(75.00)=&     6324.120
\\ LOGSTR1=            &    -7.0 & Q(37.50)=&     2239.752
\\ Isotope Corr.:      &     0.0 & Q(18.75)=&      794.877
\\ Egy. (cm$^{-1}$) $>$&     0.0 & Q(9.375)=&      283.270
\\ $\mu_a$ = &                   & A=& 49142.867
\\ $\mu_b$ = &   1.9785          & B=& 10604.822
\\ $\mu_c$ = &                   & C=& 9249.756
\headend
Microwave transitions are from E. Hirota {\it et al.}, 1970, J. Mol. Spect.
{\bf 34}, 222. Millimeter and submillimeter transitions are from
L. Martinache {\it et al.}, 1986, J. Mol. Spect. {\bf 119}, 225.
Far-infrared spectra are from M. Carlotti {\it et al.}, 1988, J. Mol.
Spect. {\bf 132}, 158. These frequencies were multiplied by 0.9999982
to bring the lines more in agreement with the microwave and submillimeter
data. The dipole moment is from K. Kawaguchi and T. Tanaka, 1986, J. Mol.
Spect. {\bf 68}, 125. The partition function includes allowance for
the vibrational states.