\\ Species Tag: & 62006 & Name:& C5D \\ Version: & 1 & & 2,4-Pentadiynylidyne \\ Date: & Jan. 1996 & & deuterium isotope, \\ Contributor:& J. C. Pearson & & X $^2\Pi$ states \\ & & & \\ Lines Listed: & 4436 & Q(300.0)=& 30492.8367 \\ Freq. (GHz) $<$ & 1303 & Q(225.0)=& 22913.4567 \\ Max. J: & 99 & Q(150.0)=& 14870.1208 \\ LOGSTR0= & -10.0 & Q(75.00)=& 6766.2080 \\ LOGSTR1= & -10.0 & Q(37.50)=& 2903.8713 \\ Isotope Corr.: & -3.824 & Q(18.75)=& 1207.1955 \\ Egy. (cm$^{-1}$) $>$& 0.0 & Q(9.375)=& 537.6068 \\ $\mu_a$ = & 4.881 & A=& \\ $\mu_b$ = & & B=& 2262.1 \\ $\mu_c$ = & & C=& \headend The observed lines are from: T. Hirota, H. Ozawa, Y. Sekimoto and S. Yamamoto, 1995, J. Mol. Spect. {\bf 174}, 196. C. A. Gottlieb, J. C. Pearson, D. R. Woodward and P. Thaddeus, 1988, Private Communication. The dipole was calculated by D. E. Woon, 1995, Private Communication.