title: Incorporation of fullerene derivatives into smectite clays: a new family of organic-inorganic nanocomposites.
abstract: Three fulleropyrrolidine derivatives, characterized by the presence of positive charges, were introduced in the interlayer space of montmorillonite. The composites were characterized by powder X-ray diffraction and differential thermal and thermogravimetric (DTA-TGA) analysis, in conjunction with FTIR, UV-Vis, Raman, and (57)Fe-Mössbauer spectroscopies. Organophilic derivatives were intercalated into organically modified clays, while water-soluble fulleropyrrolidines were introduced into the clay galleries through ion exchange. The experiments, complemented by computer simulations, show that not all the clay-clay platelets are intercalated by the fullerene derivatives and that a sizable amount of charge transfer takes place between the host and the guests.
authors.affiliation: Department of Materials Science and Engineering, University of Ioannina, 45110 Ioannina, Greece. dgourni@cc.uoi.gr
authors.forename: Dimitrios
authors.initials: D
authors.lastname: Gournis
authors.forename: Vasilios
authors.initials: V
authors.lastname: Georgakilas
authors.forename: Michael A
authors.initials: MA
authors.lastname: Karakassides
authors.forename: Thomas
authors.initials: T
authors.lastname: Bakas
authors.forename: Konstantinos
authors.initials: K
authors.lastname: Kordatos
authors.forename: Maurizio
authors.initials: M
authors.lastname: Prato
authors.forename: Marianna
authors.initials: M
authors.lastname: Fanti
authors.forename: Francesco
authors.initials: F
authors.lastname: Zerbetto