RT info:eu-repo/semantics/article T1 Dual-Tweezer Behavior of an Octapodal Pyrene Porphyrin-Based System as a Host for Fullerenes A1 Ferrero, Sergio A1 Barbero San Juan, Héctor A1 Miguel San José, Daniel A1 García Rodríguez, Raúl A1 Álvarez González, Celedonio Manuel K1 Carbon nanomaterials K1 Nanomateriales de carbono K1 Hydrocarbons K1 Hidrocarburos K1 Aromatic compounds K1 Compuestos aromáticos K1 Nanospheres K1 Nanoesferas K1 Pyrrole K1 Pirrol AB The incorporation of eight pyrene units in a single porphyrin core exhibits a great synergistic effect, resulting in high affinity toward C60 and C70. This octapyrene porphyrin is easily accessible by a straightforward two-step synthetic approach that involves an octuple Suzuki reaction. The new supramolecular platform can present single- or double-tweezer fullerene hosting behavior. The switch from double- to single-tweezer behavior is triggered by the simple coordination of Zn2+ to the porphyrin. Both the octapyrene porphyrin 2HPOP and its zinc metalloporphyrin analogue ZnPOP show very high affinity for C60 and C70, while simultaneously allowing the discrimination of C70 over C60 in a C60/C70 mixture. The use of 2HPOP and ZnPOP for the enrichment of real fullerene mixtures is also demonstrated. PB ACS Publications SN 1520-6904 YR 2019 FD 2019 LK http://uvadoc.uva.es/handle/10324/39916 UL http://uvadoc.uva.es/handle/10324/39916 LA eng NO The Journal of Organic Chemistry, 2019, vol. 84. p. 6183-6190 NO Producción Científica DS UVaDOC RD 28-mar-2024