Fig. 5. fsIR data of trans-Pt. (A) Transient and steady-state IR absorption spectra of trans-Pt measured at room temperature in oxygen-free dichloromethane. The transient IR spectra were measured upon excitation at 650 nm. (B) EAS of the (S0S1) state after solvent relaxation (green), the correlated triplet pair state (T1T1) (blue) and the decorrelation triplet state (T1S0) (red) of trans-Pt obtained upon global analysis with a sequential model of fsIR data measured in oxygen-free dichloromethane at room temperature. See (A) for the raw data. Insets: raw data single-wavenumber kinetics and fits to the data. (C) EAS of trans-Pt normalized at the ground-state bleaching. This corresponds to a normalization of the number of excited states, under the assumption that both pentacenes per dimer can be treated individually.
