The initial conditions, i.e., geometries and velocities, are determined using the quantum harmonic Wigner sampling technique. To reduce the initial kinetic energy, the C-H stretchings of the phenyl groups were kept frozen during the sampling. Two distinct excitation energy windows are considered: one associated with nπ * excitation and the other with ππ * excitation. For more details, please refer to Table . The sampling was performed taking into account the radiative (dipole) transition probability, according to the method outlined in ref. .