1. Observation of SOMO-HOMO inversion in a polycyclic conjugated hydrocarbon
- Author
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Mishra, Shantanu, Vilas-Varela, Manuel, Fatayer, Shadi, Albrecht, Florian, Peña, Diego, and Gross, Leo
- Subjects
Condensed Matter - Mesoscale and Nanoscale Physics - Abstract
We report the generation of a non-benzenoid polycyclic conjugated hydrocarbon, which consists of a biphenyl moiety substituted by indenyl units at the 4,4' positions, on ultra-thin sodium chloride films by tip-induced chemistry. Single-molecule characterization by scanning tunneling and atomic force microscopy reveals an open-shell biradical ground state, with a peculiar electronic configuration wherein the singly-occupied molecular orbitals (SOMOs) are lower in energy than the highest occupied molecular orbital (HOMO)., Comment: Manuscript: 7 pages and 3 figures. Supporting information: 10 pages and 11 figures
- Published
- 2024
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