Microwave Spectrum and Molecular Structure of Nitrosobenzene

Abstract
The microwave spectrum of nitrosobenzene has been studied in the frequency region between 13 000 and 24 000 Mc/sec. Numerous a‐type, R‐branch transitions have been identified, and the rotational constants have been determined. The molecule is completely planar with the C–N=O group bent at an angle of about 116° in the plane of the ring.