Vibrational spectra of octafluoronaphthalene

Abstract

The vibrational spectra of octafluoronaphthalene have been investigated by using Raman spectra of the powder and the solution, and infra-red absorption measurements of the vapour, the solution, and of (100) and (010) crystal planes.

The overall assignment of fundamentals is discussed; that of the in-plane modes is assisted by a 25 parameter Valence Force Field which reproduces the observed frequencies with an average error of less than 10 cm^–1.