The 4550\u2002\uc5 band system of glyoxal. III. Vibration-rotational analyses for 11 bands of C2D2O2

Rotational analyses have been carried out for 11 bands of the 1Au\u20131Ag (\u3c0*\u2013n) transition of glyoxal-d2 in absorption. Approximately 13\u2002000 lines have been assigned, and rotational and vibrational constants determined by computer methods. The following vibrational frequencies have been determined: \u3bd2\u2032\u2002=\u20021394.42\u2002cm 121, \u3bd4\u2032\u2002=\u2002866.52\u2002cm 121, \u3bd5\u2032\u2002=\u2002499.04\u2002cm 121, \u3bd7\u2032\u2002=\u2002217.36\u2002cm 121, \u3bd5\u2033\u2002=\u2002537.29\u2002cm 121, and \u3bd7\u2033\u2002=\u2002117.98\u2002cm 121. The bands are relatively free from perturbations with the exception of a Coriolis interaction involving the torsional vibration \u3bd7(au) and the C\u2014C=O bending vibration \u3bd12(bu).Peer reviewed: YesNRC publication: Ye