SEARCH Articles Figures Tables Calculated first singlet excitation Calculated first singlet excitation energy Compound nucleus first excited state Correlation potentials, ground-state exchange first excitation energies Energy level diagram first excited singlet state Excitation energy, first Excitation energy, first from correlation potentials First excited singlet First excited singlet state First excited singlet state photophysical properties First excited state First excited state configuration First excited state harmonic oscillator First order static excitation potential Fluorescence spectra first excited singlet state Potential energy functions first excited singlet state Potentials first order static excitation potential Vibrational modes first excited singlet state