Vibronic Coupling Drives the Ultrafast Internal Conversion in a Functionalized Free-Base Porphyrin - Petropoulos, Vasilis; Rukin, Pavel S; Quintela, Frank; Russo, Mattia; Moretti, Luca; Moore, Ana; Moore, Thomas; Gust, Devens; Prezzi, Deborah; Scholes, Gregory D; Molinari, Elisa; Cerullo, Giulio; et al. (Journal Of Physical Chemistry Letters, 2024)