Figure 10.

Polyene transition energies in room temperature 2-MTHF. Data from Table 2. Energies of the 1¹Ag⁻ → 1¹B_u⁺ transition (0–0) were obtained from sum of Gaussian fits. Energies of the 2¹Ag⁻ → n¹B_u⁺ and 1¹B_u⁺ → n¹Ag⁻ transitions correspond to the wavelengths of maximum absorption of EADS components from the transient absorption spectra. The 1¹Ag⁻ → 2¹Ag⁻ transition energy was calculated from the difference between the (0–2) band of the 1¹Ag⁻ → 1¹B_u⁺ steady-state absorption and the (0–2) band of the 2¹Ag⁻ → 1¹B_u⁺ transient absorption. Peak positions were obtained from sum of Gaussian fits.