title: Exploiting multivalent nanoparticles for the supramolecular functionalization of graphene with a nonplanar recognition motif.
abstract: The supramolecular modification of planar graphene with the geometrically mismatched, curved 9,10-di(1,3-dithiole-2-ylidene)-9,10-dihydroanthracene (exTTF) molecule is demonstrated. The exTTF-graphene interaction is governed by π-π and CH-π interactions, with a negligible contribution from charge transfer. We amplified these weak forces through multivalent gold nanoparticles. Our results show that planarity is not a prerequisite for recognition motifs for graphene.
authors.affiliation: IMDEA-Nanoscience, C/Faraday, 9. Ciudad Universitaria de Cantoblanco, 28049 Madrid, Spain.
authors.forename: Fulvio G
authors.initials: FG
authors.lastname: Brunetti
authors.forename: Helena
authors.initials: H
authors.lastname: Isla
authors.forename: Juan
authors.initials: J
authors.lastname: Aragó
authors.forename: Enrique
authors.initials: E
authors.lastname: Ortí
authors.forename: Emilio M
authors.initials: EM
authors.lastname: Pérez
authors.forename: Nazario
authors.initials: N
authors.lastname: Martín
keywords: graphene; multivalency; nanoparticles; pi-pi interactions; supramolecular chemistry.