Luminescent Blooming of Dendronic Carbon Nanotubes through Ion-Pairing Interactions with an EuIII Complex (Articolo in rivista)

Type
Label
  • Luminescent Blooming of Dendronic Carbon Nanotubes through Ion-Pairing Interactions with an EuIII Complex (Articolo in rivista) (literal)
Anno
  • 2012-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1002/chem.201200237 (literal)
Alternative label
  • Maggini, Laura and Toma, Francesca Maria and Feruglio, Luigi and Malicka, Joanna M. and Da Ros, Tatiana and Armaroli, Nicola and Prato, Maurizio and Bonifazi, Davide (2012)
    Luminescent Blooming of Dendronic Carbon Nanotubes through Ion-Pairing Interactions with an EuIII Complex
    in Chemistry (Weinh., Print)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Maggini, Laura and Toma, Francesca Maria and Feruglio, Luigi and Malicka, Joanna M. and Da Ros, Tatiana and Armaroli, Nicola and Prato, Maurizio and Bonifazi, Davide (literal)
Pagina inizio
  • 5889 (literal)
Pagina fine
  • 5897 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 18 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 19 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Armaroli, N (Reprint Author), Univ Namur FUNDP, Dept Chem, Rue Bruxelles 61, B-5000 Namur, Belgium. Maggini, Laura; Bonifazi, Davide, Univ Namur FUNDP, Dept Chem, B-5000 Namur, Belgium. Toma, Francesca Maria; Feruglio, Luigi; Da Ros, Tatiana; Prato, Maurizio; Bonifazi, Davide, Univ Trieste, Dept Chem & Pharmaceut Sci, I-34127 Trieste, Italy. Toma, Francesca Maria; Feruglio, Luigi; Da Ros, Tatiana; Prato, Maurizio; Bonifazi, Davide, Univ Trieste, UdR INSTM, I-34127 Trieste, Italy. Malicka, Joanna M.; Armaroli, Nicola, ISOF CNR, Mol Photosci Grp, I-40129 Bologna, Italy. (literal)
Titolo
  • Luminescent Blooming of Dendronic Carbon Nanotubes through Ion-Pairing Interactions with an EuIII Complex (literal)
Abstract
  • A multiwalled carbon nanotube (MWCNT) scaffold was covalently functionalized with a second-generation polyamidoamine (PAMAM) dendron, presenting four terminal amino groups per grafted aryl moiety. These reactive functions were alkylated to obtain a positively charged polycationic dendron/carbon nanotube system (d-MWCNTs.Cl), which eventually underwent anion exchange reaction with a negatively charged and highly luminescent EuIII complex ([EuL4].NEt4, in which L=(2-naphtoyltrifluoroacetonate)). This process afforded the target material d-MWCNTs.[EuL4], in which MWCNTs are combined with red-emitting EuIII centers through electrostatic interactions with the dendronic branches. Characterization of the novel MWCNT materials was accomplished by means of TGA and TEM, whereas d-MWCNTs.Cl and d-MWCNTs. [EuL4] further underwent XPS, SEM and Raman analyses. These studies demonstrate the integrity of the luminescent [EuL4]- center in the luminescent hybrid, the massive load of the cationic binding sites, and the virtually complete anion-exchange into the final hybrid material. The occurrence of the ion-pairing interaction with MWCNTs was unambiguously demonstrated through DOSY NMR diffusion studies. Photophysical investigations show that MWCNTs.[EuL4] is a highly soluble and brightly luminescent red hybrid material in which MWCNTs act as photochemically inert scaffolds with negligible UV/Vis absorption, compared with the grafted Eu complex, and with no quenching activity. The high dispersibility of MWCNTs.[EuL4] in a polymer matrix makes it a promising luminophore for applications in material science. (literal)
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