Megan R. Bentley [1];Ugo Jacovella (https://orcid.org/0000-0003-2152-261X) [2];Jean-Christophe Loison (https://orcid.org/0000-0001-8063-8685) [3];Myriam Drissi (https://orcid.org/0000-0001-9233-8620) [4];Gustavo A. Garcia (https://orcid.org/0000-0003-2915-2553) [5];Séverine Boyé-Péronne (https://orcid.org/0000-0003-0579-9571) [6];Peter R. Franke (https://orcid.org/0000-0001-9781-3179) [7];John F. Stanton (https://orcid.org/0000-0003-2345-9781) [8];Bérenger Gans (https://orcid.org/0000-0001-9658-2436) [9];. Direct Observation of a Fundamental Arylium Species Using Photoelectron Spectroscopy: Singlet–Triplet Gap in Phenylium[J]. Journal of the American Chemical Society, 2025,147(20): 17068-17076