LOW FREQUENCY VIBRATIONAL SPECTRA AND RING-PUCKERING OF CYCLOPENTENE-$d_{8}$

Abstract

The ring-puckering potential energy function for cyclopentene-$d_{8}$ has been determined from its vibrational spectra. The potential function and barrier are consistent with previous analysis of cyclopentene-$d_{0}$. In the Raman spectrum of the vapor, a dozen bands corresponding to $\Delta v = \pm\ 2$ puckering transitions were observed.