THE EFFECTS OF A STRONG CORIOLIS RESONANCE IN THE FAR INFRARED-SPECTRUM AND ROTATIONAL TRANSITIONS OF H13 CNO

The far infrared spectrum of H13CNO, an isotopically substituted species of fulminic acid or hydrogen nitrile oxide, has been measured between 170 and 370 cm-1 at a resolution of 0.003 cm-1 with a Bruker IFS 120 HR interferometer. Supplemental information was obtained from microwave and millimeter-wave measurements in the ranges 18-40 and 100-400 GHz. Spectroscopic parameters for the vibrational states v1v2v3v4v5 = 00000, 00001, 00002, 00003, 00010, and 00011 have been obtained. A strong Coriolis resonance between the levels 00002 (l = 0e) and 00010 (l = 1e) leads to the perturbation of these levels over a very wide range of J-values and to the presence of numerous Coriolis-allowed bands in the infrared and microwave regions. © 1990.