Figure 11.

(a) Absorbance difference of native Agp1 upon excitation at 680 nm for various pump-probe delay times under isotropic conditions. Bleaching signals around 1705 cm⁻¹ and above 1718 cm⁻¹ are due to ν(C₁₉ = O) and ν(C₁ = O) absorption. (b) Decay associated infrared absorption spectra calculated to time zero for parallel polarization (A_‖, black solid circles) and perpendicular polarization (A_⊥, red open circles). (c) Angle between electronic and vibrational tdm calculated by the dichroic ratio (DR = A_‖/A_⊥). The solid lines indicate regions of constant angle.