\\ Species Tag: & 75001 & Name:& HCCCCCN \\ Version: & 1 & & Cyanodiacetylene \\ Date: & Dec. 1979 & & \\ Contributor:& R. L. Poynter & & \\ & & & \\ Lines Listed: & 99 & Q(300.0)=& 4695.696 \\ Freq. (GHz) $<$ & 264 & Q(225.0)=& 3315.890 \\ Max. J: & 99 & Q(150.0)=& 2314.729 \\ LOGSTR0= & -6.7 & Q(75.00)=& 1174.086 \\ LOGSTR1= & -2.6 & Q(37.50)=& 587.219 \\ Isotope Corr.: & 0 & Q(18.75)=& 293.765 \\ Egy. (cm$^{-1}$) $>$& 0.0 & Q(9.375)=& 147.062 \\ $\mu_a$ = & & A=& \\ $\mu_b$ = & 4.330 & B=& 1331.33 \\ $\mu_c$ = & & C=& \headend The experimental measurements were taken from A. J. Alexander, H. W. Kroto, and D. R. M. Walton, 1976, J. Mol. Spect. {\bf 62}, 175. The dipole moment was measured by these same authors.