Microwave spectra ofs-cis-Glyoxal (CHO−CHO) molecules in excited vibrational states

Abstract

The microwave spectra of s-cis-glyoxal molecules in the excited states of torsional (vt=1,2) and bending (vbend=1) vibrations have been studied. For the vt=1 state, the rotational constants have been refined and the quartic constants of centrifugal distorition have been determined. For the excited vt=2 and vbend=1 states, the rotational constants have found. For the ground vibrational state, the rotational constants and the quartic constants of centrifugal distortion have been refined. The vibrational frequencies have been determined from the relative intensities of rotational transitions.