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Título: SYNTHESIS AND CHARACTERIZATION OF NEW LIQUID-CRYSTALLINE DYES FOR NONLINEAR OPTICS
Autores: Hanemann, Thomas
Soto Bustamante, Eduardo Arturo
Weyrauch, T.
Haase, W.
Fecha: 2011-06-21
2011-06-21
1993
Publicador: TAYLOR & FRANCIS LTD
Fuente: Ver documento
Tipo: Artículo de Revista
Tema: Stilbene
Azomethine
Aromatic aldehydes
Nonlinear optics
Descripción: Artículo de publicación ISI
We present the synthesis and a description of the physical properties of several organic dyes containing stilbene as well as azomethine groups. The preparations of all compounds started from a common precursor, 4-amino-4'-nitrostilbene, followed by condensation with aromatic aldehydes. The mesomorphic properties and spectroscopic data were established using polarizing microscopy, DSC measurements, X-ray and UV/Vis spectroscopy. Three of the compounds showed enantiotropic smectic phases, two of them highly ordered S(E) and S(B) phases, and a nematic phase. In addition quantum chemical calculations concerning the electronic properties were carried out.
Idioma: Inglés
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