title: Metal-atom impact on the self-assembly of cup-and-ball metalloporphyrin-fullerene conjugates.
abstract: A fullerene ammonium derivative has been combined with different metalloporphyrin-crown ether receptors to generate very stable supramolecules. The combination of fullerene-porphyrin and ammonium-crown ether interactions leads to a strong chelate effect as evidenced by a high effective molarity (3.16 M). The different parameters influencing the stability of the supramolecular ensembles, in particular the nature of the metal in the porphyrin moiety, have been rationalized with the help of theoretical calculations thus providing new insights into fullerene-porphyrin interactions.
authors.affiliation: Laboratoire de Chimie des Matériaux Moléculaires, Université de Strasbourg et CNRS (UMR 7509), ECPM, 25 rue Becquerel, 67087 Strasbourg (France); Departamento de Química Orgánica, Fac. C.C. Químicas, Universidad Complutense de Madrid, Av. Complutense s/n, 28040 Madrid (Spain).
authors.forename: Luis
authors.initials: L
authors.lastname: Moreira
authors.forename: Joaquín
authors.initials: J
authors.lastname: Calbo
authors.forename: Beatriz M
authors.initials: BM
authors.lastname: Illescas
authors.forename: Juan
authors.initials: J
authors.lastname: Aragó
authors.forename: Iwona
authors.initials: I
authors.lastname: Nierengarten
authors.forename: Béatrice
authors.initials: B
authors.lastname: Delavaux-Nicot
authors.forename: Enrique
authors.initials: E
authors.lastname: Ortí
authors.forename: Nazario
authors.initials: N
authors.lastname: Martín
authors.forename: Jean-François
authors.initials: JF
authors.lastname: Nierengarten
keywords: crown compounds; fullerenes; molecular modeling; porphyrins; supramolecular chemistry