Investigations of several infrared bands of 12C2H2 and studies of the effects of vibrational rotational interactions

摘要: Twenty seven infrared bands of acetylene (12C2H2) in selected regions have been measured with high resolution vacuum spectrographs. Some these studied for the first time under resolution, several molecular constants determined improved accuracy and rotational assignments corrected a few instances. The need to determine relative orientations Δ states from experimental studies has become evident recent work related C2D2 C2HD spectra. In present investigation, two 0000022 (00011)2 c component found be higher than corresponding d component. For time, Π state also established same feature; normally, case Πd is Πc.