http://www.cnr.it/ontology/cnr/individuo/prodotto/ID16907
Raman Spectra of Poly(p-phenylenevinylene)s with Fluorinated Vinylene Units: Evidence of Inter-ring Distortion (Articolo in rivista)
- Type
- Label
- Raman Spectra of Poly(p-phenylenevinylene)s with Fluorinated Vinylene Units: Evidence of Inter-ring Distortion (Articolo in rivista) (literal)
- Anno
- 2009-01-01T00:00:00+01:00 (literal)
- Alternative label
Piacenza M., Comoretto D., Burger M., Morandi V., Marabelli F., Martinelli C., Farinola G.M., Cardone A., Gigli G., Della Sala F. (2009)
Raman Spectra of Poly(p-phenylenevinylene)s with Fluorinated Vinylene Units: Evidence of Inter-ring Distortion
in ChemPhysChem (Print)
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Piacenza M., Comoretto D., Burger M., Morandi V., Marabelli F., Martinelli C., Farinola G.M., Cardone A., Gigli G., Della Sala F. (literal)
- Pagina inizio
- Pagina fine
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
- Rivista
- Note
- ISI Web of Science (WOS) (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- National Nanotechnology Laboratory (NNL) of CNR-INFM, Università del Salento, Via per Arnesano, 73100 Lecce (Italy), Fax: (+39) 0832-298238
Dipartimento di Chimica e Chimica Industriale, Università di Genova, Via Dodecaneso 31, 16146 Genova (Italy), Fax: (+39) 010-3538733
Physics Department \"A. Volta\", Università di Pavia, Via Bassi 6, 27100 Pavia (Italy)
Dipartimento di Chimica, Università di Bari, Via Orabona 4, 70126 Bari (Italy)
CNR ICCOM Istituto di Chimica dei Composti Organometallici, Università di Bari, Via Orabona 4, 70126 Bari (Italy) (literal)
- Titolo
- Raman Spectra of Poly(p-phenylenevinylene)s with Fluorinated Vinylene Units: Evidence of Inter-ring Distortion (literal)
- Abstract
- The Raman spectrum of poly{2-methoxy-5-[(2-ethylhexyl)oxy]-
1,4-phenylenedifluorovinylene} (MEH-PPDFV) is reported and
compared with that of a well-known non-fluorinated reference
polymer, namely poly{2-methoxy-5-[(2-ethylhexyl)oxy]-1,4-phenylenevinylene}
(MEH-PPV). The Raman spectra of both polymers
are assigned on the basis of density functional theory calculations
of the corresponding oligomers. The main differences
between vinylene fluorinated and non-fluorinated structures
deal with the intensity, frequency shift and broadening of C?C
vinylene stretching. Additional differences concern the relative
intensities of C?C phenylene and vinylene stretching as well as
the deformation modes in the range 1250-1350 cm?1. It is
shown that these effects are due to the larger distortion from
planarity of the fluorinated polymer, compared with the nonfluorinated
counterpart, induced by repulsive interactions between
the fluorine atoms on the vinylene units and the
oxygen atoms of the alkoxy groups on the aromatic rings. (literal)
- Prodotto di
- Autore CNR
Incoming links:
- Prodotto
- Autore CNR di
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi