Knowledge Bank

We have recorded the absorption spectrum of pyrrole at high resolution up to the near infrared range, using a Fourier transform (FT) $interferometerh$. We present the rotational analysis of the two strongest fundamental bands, $\nu 1$, the N-H stretch and $\nu 22$ the symmetric CH bend. A very detailed rotational assignment is performed. resulting into extensive sets of rotional parameters. The results will be presented and compared to previous literature results available for the N-H stretch $only.i$ The vibrational identification of the various bands observed on the FT spectrum up to the early overtone range will be discussed.