Nanometer-Scale Fullerene-Type Conjugated Covalent Cages Based on Triazine: Design, Doping with Li+, and H2/CO2
Mario Sánchez1, Jonas Baltrusaitis2, María G Vasquez-Ríos3
1Centro de Investigación en Materiales Avanzados, S.C., Alianza Norte 202, Parque de Investigación en Innovación Tecnológica (PIIT), Carretera Monterrey-Aeropuerto Km 11, Apodaca, Nuevo León 66628, Mexico.
None:
Spherical and hollow molecular cages based on planar triazine (C3N3) hubs and aromatic phenylene connectors have been developed. The cages exhibit topologies akin to C20, C60, and C70 fullerenes with diameters that range from 2.3 to 4.9 nm. Apertures into the cage interiors are tuned by varying the aromatic connectors situated between the C3N3-units. The stabilities of the C3N3 cages increase with size owing to reduced bending strain of planar nodes and connectors that make up the spherical aromatic networks. Doping of the cages with Li+ reveals the capacity of the cages for significant adsorption of gaseous H2 and CO2. The design of graphene-like spherical cages is also discussed.
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