THE MICROWAVE TORSIONAL ROTATIONAL SPECTRUM OF CH2DOD

The microwave torsional-rotational spectrum of CH2DOD has been predicted, identified, assigned, and analyzed to determine the internal rotation potential energy coefficients and selected nonrigidity corrections. Although trans to gauche transitions are too weak for observation in the torsional ground states, transitions have been observed between three excited torsional states as well as the usual gauche(+) to gauche(-) transitions for the torsional ground states. Taken together, these allow for the determination of the potential energy coefficients for CH2DOD: V1 = 8.03 ± 0.10 cm-1, V2 = 2.73 ± 0.10 cm-1, and V3 = 364.72 ± 0.25 cm-1. © 1991.