Observation of the high-resolution spectrum of the N-H bending vibration of ketenimine CH2CNH

A high-resolution infrared spectrum of ketenimine CH2CNH has been measured in the N-H bending region around 1000 cm−1 using an FTIR spectrometer. A rotational analysis of the spectrum revealed perturbations in the vibrational excited state, and they were analyzed in terms of Coriolis coupling and large amplitude motion. The band center of this band has been determined to be 1000.23786(71) cm−1.