The polarization of excimer fluorescence from a dinucleotide

The polarization of the excimer fluorescence from the dinucleotide CpC has been observed to be strikingly different from that of the monomer. The mixed polarization in the absorption reflects significant ground state interaction. The mixed polarization in the fluorescence is most likely due to a component which is polarized between the chromophores, a manifestation of charge resonance character in the excimer state.