THE HIGH-RESOLUTION INFRARED-SPECTRUM OF THE NU(9), NU(10)-BAND SYSTEM IN IN H2C=C-13=CH2

The infrared spectrum of the nu9 and nu10 bands in H2C= C-13=CH2 has b een studied at a resolution of 0.003 to 0.004 cm-1. The bands interact globally by z-Coriolis resonance, and several additional vibrational and Coriolis-type perturbations have been identified in this band syst em. Spectroscopic constants for the ground state have been obtained fr om a GSCD analysis. Using a model taking into account rotational l-typ e interactions, global z-Coriolis perturbation, local (x, y)-Coriolis interactions with the 2nu11, nu4, and nu3 levels, and local vibrationa l interactions with 3nu11 a set of spectroscopic constants have been o btained for nu9 and nu10. The analyses also yielded a number of resona nce parameters and a few spectroscopic constants for the perturbers. ( C) 1994 Academic Press, Inc.