\\ Species Tag: & 52013 & Name:& CNCN \\ Version: & 2 & & Isocyanogen \\ Date: & Jan.\ 1998 & & \\ Contributor:& H. S. P. M\"uller & & \\ & H. M. Pickett & & \\ Lines Listed: & 206 & Q(300.0)=& 10877.0116 \\ Freq. (GHz) $<$ & 1022 & Q(225.0)=& 8159.7753 \\ Max. J: & 99 & Q(150.0)=& 5440.4711 \\ LOGSTR0= & -9.0 & Q(75.00)=& 2721.5031 \\ LOGSTR1= & -6.0 & Q(37.50)=& 1362.1960 \\ Isotope Corr.: & 0. & Q(18.75)=& 682.5893 \\ Egy. (cm$^{-1}$) $>$& 0.0 & Q(9.375)=& 342.8030 \\ $\mu_a$ = & 0.7074 & A=& \\ $\mu_b$ = & & B=& 5174.1377 \\ $\mu_c$ = & & C=& \headend The data is taken from M. C. L. Gerry, F. Stroh, and M. Winnewisser, 1990, J. Mol. Spectrosc. {\bf 140}, 147. Quadrupole splittings have been resolved for $J$ = 1-0 and 2-1. Predictions with quadrupole splittings have been included for all $J$ even though the splittings are rather small.