The ultrafast transient absorption (fs-TA) spectra were collected upon 400 nm excitation. The setup is based on a Ti:Sapphire laser (Legend Elite, Coherent Inc.) yielding pulses centered at 795 nm (pulse-duration: 100 fs, repetition rate: 1 kHz). The 400 nm pump pulses were generated by second harmonic generation (BBO crystal). Those pulses were focused on the sample (1 mm cuvette) with an average intensity of 0.4 mW (gaussian beam profile of 400 x 400 µm). At the sample position the pump-and probe pulses are temporally and spatially overlapped in magic angle configuration. Whitelight was used as probe pulses, which was generated from the 795 nm fundamental laser pulses by focussing it on a rotating CaF2 plate. Those probe pulses were temporally delayed with respect to the pump pulses by means of an optical delay stage (maximum delay of 2 ns). The probe pulses are split into two trains, namely a reference and probe path. Both pulses are focused on a diode array, directly (reference) or after the pulses were focused on the sample (probe). The probe pulses are recollimated and spectrally dispersed by a prism and detected by a diode array (Pascher Instruments AB, readout frequency of 1 kHz). The fs-TA data was analysed using the KiMoPack tool. Prior to global lifetime analysis the data was arrival-time corrected. The temporal resolution was limited to 0.3 ps, to avoid strong contributions of coherent artefacts to the signals. The pre-processed data was analysed using a parallel compartmental model (independent, first order decay employing three characteristic time-constants: ΔAbs = ∑ 𝑎 • exp (-𝑘 • 𝑡) . In this model, the three employed processes are associated with the so-called decay associated spectra (DAS), i.e., the exponential pre-factors (ai). To model the additional deactivation channel a target analysis was performed using KiMoPack, whereby the model as sketched in Figure , i.e., including an excited-state branching was employed. For both, global and target lifetime analysis, the errors of the fitted parameters (kinetic-rate constants) are obtained in a confidence level of 95%.