Two-Heptagon Saddle-Shaped Nanographene as a Host for Fullerene Assembly
A two-heptagon saddle-shaped nanographene was synthesized through a palladium-catalyzed [4+3] decarboxylative annulation as a key step. This negatively curved π-system binds C<sub>60</sub> and C<sub>70</sub> with moderate affinities with distinct supramolecular architectures. C<sub>60</sub> of the (C<sub>60</sub>)<sub>2</sub>⊂<b>1</b> complex assembles into perpendicular zigzag arrays with short interfullerene contacts, whereas C<sub>70</sub> of the C<sub>70</sub>⊂<b>1</b> complex adopts a unidirectional zigzag arrangement. These findings demonstrate that negative curvature and substituent placement influence supramolecular packing, offering design principles for fullerene-nanographene assemblies.
Authors
- Amporn Saekee
- Khetpakorn Chakarawet (ORCID: https://orcid.org/0000-0001-5905-3578)
- Panida Surawatanawong (ORCID: https://orcid.org/0000-0002-0300-4205)
- Chutima Kuhakarn (ORCID: https://orcid.org/0000-0003-4638-4356)
- Darunee Soorukram (ORCID: https://orcid.org/0000-0002-6865-2270)
- Kritchasorn Kantarod
- Pawaret Leowanawat (ORCID: https://orcid.org/0000-0001-8745-2322)
- Vichai Reutrakul (ORCID: https://orcid.org/0000-0002-0743-1300)
Institutions
- Mahidol University (TH)
Publication Details
- Journal
- Organic Letters
- Published
- 2025-11-21
- DOI
- https://doi.org/10.1021/acs.orglett.5c04019
- Primary Topic
- Fullerene Chemistry and Applications
- Type
- article
- Field-Weighted Citation Impact
- 0.00