Epimerization of chlorophyll a analogs: effects of the vinyl groups in the A-ring and B-ring of the chlorin macrocycle. - Saga, Yoshitaka; Minatogawa, Kazuto; Kichishima, Saki; Kashiyama, Yuichiro; Nakazawa, Masami; Tamiaki, Hitoshi (Photochemical & Photobiological Sciences, 2026)