pH-Dependent Vibrational Dynamics Drives Excited-State Quenching in the Phycobiliprotein Complex PC645 - Sayan Maity; Yue Hu; Dongyu Lyu; Jingyun Wu; Coral O’Brien; Michael H. Hecht; Leah C. Spangler; Gregory D. Scholes; Ulrich Kleinekathöfer (Journal of the American Chemical Society, 2026)