\\ Species Tag: & 56006 & Name:& CH2DCH2CN-a \\ Version: & 2 & & Ethyl cyanide, \\ Date: & Jan. 1981 & &deuterium isotope on \\ Contributor:& R. L. Poynter & &methyl carbon {\it gauche} \\ & & & to the CN group \\ Lines Listed: & 1286 & Q(300.0)=& 121059.867 \\ Freq. (GHz) $<$ & 480 & Q(225.0)=& 76736.188 \\ Max. J: & 10 & Q(150.0)=& 42815.391 \\ LOGSTR0= & -9.0 & Q(75.00)=& 15132.134 \\ LOGSTR1= & -8.2 & Q(37.50)=& 5350.569 \\ Isotope Corr.: & -3.347 & Q(18.75)=& 1827.259 \\ Egy. (cm$^{-1}$) $>$& 0.0 & Q(9.375)=& 623.304 \\ $\mu_a$ = & 3.84 & A=& 25022.568 \\ $\mu_b$ = & 1.37 & B=& 4583.422 \\ $\mu_c$ = & & C=& 4110.245 \headend The experimental measurements were analyzed using the methods described in W.~H. Kirchhoff, 1972, J. Mol. Spect. {\bf 41}, 333, and W. H. Kirchhoff and D. R. Johnson, 1973, J. Mol. Spect. {\bf 45}, 159. The measurements were taken from H. M\"ader, N. M. Heise, and H. Dreizler, 1973, Z. Naturforsch. {\bf 29a}, 164. The dipole moment is an approximate value.