Vibration-rotation components in the deuterated methyl acetylene (CD3CCD) molecule for the Delta J=3 <- 2 and Delta J=2 <- 1 rotational transitions in the nu(9) = 1 and 3 and the nu(10) = 1 and 2 vibrations

Measurements were made on the Delta J = 3 <-- 2 and Delta J = 2 <-- 1 rotat ional transitions in the v(9) = 1 and 3 and the v(10) = 1 and 2 vibrational components of the vibration rotation spectra of the deuterated propyne mol ecules to test and compare the "jackknife" method of analysis to standard m ethods of analysis. Some spectral components in the v(9) and the v(10) vibr ations were measured and several constants refined. For the first time; the v(9) = 3 rotational components were measured and molecular constants for t his vibration determined. Rotational components in the ground, the v(10) = 1 and 2 vibrations were measured for these; J values. The l-doubling consta nt q(v) was determined. The "jackknife" method was used for the analysis du e to the limited amount of data and to check the validity of the results.