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 Fe-57-Mossbauer 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.
Gournis D., Georgakilas V., Karakassides M.A., Bakas T., Kordatos K., Prato M., et al. (2004). Incorporation of fullerene derivatives into smectite clays: A new family of organic-inorganic nanocomposites. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 126, 8561-8568 [10.1021/ja049237b].
Incorporation of fullerene derivatives into smectite clays: A new family of organic-inorganic nanocomposites
FANTI, MARIANNA;ZERBETTO, FRANCESCO
2004
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 Fe-57-Mossbauer 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.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
