Experimental Study Redefines the Mechanism of Heptamethine Cyanine Phototruncation - Nasrulla Majid Khan; Gabriel Glotz; Jana Okoročenkova; Jakub Dostal; Miroslav Kloz; Max T. G. M. Derks; Aleksandr Y. Pereverzev; Dmytro Neshchadin; Jana Roithová; Petr Klán (Journal of the American Chemical Society, 2026)