On the spectroscopic consequences of different tunnelling mechanisms in non-rigid RPF₄ molecules (R=Cl, CH₃)

Abstract

In this paper we obtain the theoretical spectra for each possible mechanism for fluorine exchange in RPF₄ molecules (R = Cl, CH₃). The number of lines and their relative intensities are a characteristic of each isomerization mode. The possibility of discriminating between the isomerization modes is discussed.