The experimental and calculated IR and Raman spectra were compared and analyzed in the range of 1290-1440cm - 1 . The calculations were carried out with semi-empirical AM1 and PM3 parameterization and with Hartree-Fock approximation. The latter method reproduced the experimental spectra quite satisfactorily, while a model obtained with AM1 has got reasonably good frequencies and shows the vibrations in which quinuclidine nitrogen is involved. The calculations done with PM3 are completely inadequate in this respect, showing the weakness of this parameterization for compounds containing nitrogen atom.