Figure 4.

Ground and excited-state energies (eV) for the first singlet exciplex of acetone and methyl vinyl ether in multistate energy decomposition analysis. The energies of adiabatic ground state of isolated monomers in equilibrium geometries have been set equal to zero. The effective adiabatic excitation energies of the separate monomers in the exciplex geometries are given in red. Singlet (maroon) and triplet (green) states are labeled on the far right for exciplex complex. Energy levels are not drawn in scale.