Williams RM, Verhoeven JW (1994) On the applicability of the Kasha-Vavilov rule to C60. Spectrochim Acta 50A:251-254Williams RM, Verhoeven JW. On the applicability of the Kasha-Vavilov rule to C 60 . Spectro Acta. 1994; 50A :251–4....
We propose that at least part of the charge carrier excitations from the higher energy two photon ,state decays to the 'optically silent' two photon state via intermediate energy one photon states (j B u) contributing to the violation of Vavilov–Kasha rule....
"Emission Wavelength Variation with Changes in Excitation in a Re(I)bisthiazole Ligand Complex that Breaks the Kasha- Vavilov Rule." Chemical Science 4 (2013): 2490-2495.Emission wavelength variation with changes in excitation in a re (i)–bisthiazole ligand complex that breaks the kasha–...