Ne matrix spectra of the sym-C₆Br₃F₃⁺ radical cation

The electronic absorption and laser excited, wavelength resolved fluorescence spectra of the title cation have been observed in solid Ne matrix and vibrationally analysed. The vibrational structure of the excited B²A₂^″ state shows close similarity to the parent compound. The X²E″ ground state structure is strongly perturbed and irregular owing to a large Jahn-Teller distortion. The data are analysed in terms of a recently developed, sophisticated multimode Jahn-Teller theoretical model. We have generated the sym-C₆Br₃F₃⁺ cations in solid Ne matrix and obtained their wavelength resolved emission and absorption spectra. T ground electronic X₂E″ state exhibits an irregular and strongly perturbed vibrational structure, which can be successfully modeled using sophisticated multimode Jahn-Teller theory.