Kantarod K.Chakarawet K.Saekee A.Soorukram D.Kuhakarn C.Surawatanawong P.Reutrakul V.Leowanawat P.Mahidol University2025-12-132025-12-132025-12-05Organic Letters Vol.27 No.48 (2025) , 13204-13210https://repository.li.mahidol.ac.th/handle/123456789/113486A 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 C60 and C70 with moderate affinities with distinct supramolecular architectures. C60 of the (C60)2⊂1 complex assembles into perpendicular zigzag arrays with short interfullerene contacts, whereas C70 of the C70⊂1 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.ChemistryBiochemistry, Genetics and Molecular BiologyArticleSCOPUS10.1021/acs.orglett.5c040192-s2.0-1050240161471523705241269042