Abstract
The vibrational spectra of pentafluorophenol (PFP) have been investigated in the gaseous and solid states and as solutions in nonpolar solvents. An assignment of the thirty-three fundamental modes is proposed using the band contours and Raman depolarization ratios. Thermodynamic properties, calculated for a rigid-rotor harmonic oscillator approximation, are also reported. The potential barrier restricting the internal rotation about the phenyl-O bond was evaluated to be 1273 cm −1.
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