Absorption and laser induced fluorescence spectra of C6F6+ inert gas matrices

Publisher Website
Google Scholar
Abstract
The vibrational structure of the ? 2E1g ↔? 2A2u electronic transition of C6F6+ in solid inert gas matrices is examined. Three kind of spectra are observed: (i) laser excitation, (ii) laser excited, wavelength resolved emission, and (iii) simple absorption. The laser excitation spectrum shows regular, assignable ? 2A2u vibrational structure for more than 3000 cm−1 above the origin. Similar structure is revealed by the absorption spectra which gives, as well, reliable values for the oscillator strengths of the transitions. The vibrational structure of the ground state is determined from the emission spectrum to be very irregular and complicated. However, it can be analyzed by recourse to the sophisticated Jahn–Teller theory. The spectra obtained in solid Ne are found to be essentially the low temperature limit of the gas phase spectra. Various observations are made concerning matrix shifts and perturbations in solid Ar and Kr.