VIBRONIC ANALYSIS OF TRSVL FLUORESCENCE-SPECTRA FROM GLYOXAL - GENERAL ACTIVITY

The vibrational structure comprising 15 time-resolved single vibronic level (TRSVL) fluorescence spectra from the 1Au-1Ag transition in glyoxal vapor was analyzed in order to (1) establish the vibronic selection rules operative in fluorescence, (2) reveal which normal modes are most active in determining the general vibronic structure in fluorescence, and (3) confirm the assignments of major absorption transitions. The general vibronic activity observed in these TRSVL spectra provides a basis by which to identify previously unrecognized absorption and fluorescence activity in the less active modes as well as excited-state perturbations and resonances. These latter topics are addressed in detail in subsequent papers. © 1979.