Spectroscopic Characterization of the Charge-Separated Zwitterionic State Responsible for the Excimer-like Emission of a Luminescent Diradical - Ryota Matsuoka; Yusuke Yoneda; Hikaru Kuramochi; Tomoaki Miura; Tadaaki Ikoma; Masaki Saigo; Takumi Ehara; Kiyoshi Miyata; Ken Onda; Tetsuro Kusamoto (Journal of the American Chemical Society, 2026)