http://www.cnr.it/ontology/cnr/individuo/prodotto/ID54070
Synthesis and crystal structure and optical properties of fluorenic-core oligomers (Articolo in rivista)
- Type
- Label
- Synthesis and crystal structure and optical properties of fluorenic-core oligomers (Articolo in rivista) (literal)
- Anno
- 2002-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1039/B109089P (literal)
- Alternative label
Destri S., Pasini M., Botta C., Porzio W., Bertini F., Marchiò L. (2002)
Synthesis and crystal structure and optical properties of fluorenic-core oligomers
in Journal of materials chemistry (Print)
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Destri S., Pasini M., Botta C., Porzio W., Bertini F., Marchiò L. (literal)
- Pagina inizio
- Pagina fine
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
- http://pubs.rsc.org/en/content/articlepdf/2002/jm/b109089p (literal)
- 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
- Istituto di Chimica delle Macromolecole del C.N.R;
Dipartimento di Chimica Generale ed Inorganica, Chimica Analitica, Chimica Fisica, Università di Parma (literal)
- Titolo
- Synthesis and crystal structure and optical properties of fluorenic-core oligomers (literal)
- Abstract
- Fluorenic core oligomers, displaying interesting PL
properties, have been synthesized by organometallic
route. The crystal and molecular structure of a
fluorene derivative and three omologous oligomers has
been studied. Spiro-derivative of fluorene dibromine
shows a very strong interaction among H and Br atoms.
The thienyl ending oligomer with spiro-substituent
adopt a particular herring-bone arrangement with
overlap of only end-thienyl residues, conformationally
disordered. The crystal of all-phenyl derivative
consists of the packing of discrete molecules
cofacially arranged. The molecule with linear alkyl
chains onto the 9 position of fluorenic core and
thienyl ring as end-group exhibits polymorphism and
its crystal structure, tetragonal, is very peculiar
because of the unclose packing allowing a good
separation among adjacent thienyl rings.The absorption
and emission properties of this series were
investigated and the electroluminescence of single-
layer devices was characterized. The PL properties of
the molecules are strongly dependent on their
structural organization, displaying a red-shift of the
emission from the amorphous phase, to the crystalline
structure, to the aggregated form. A comparison of the
packing of these oligomers and oligothienylenes fully
accounts for the optical properties of the reported
molecules. (literal)
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