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Achiral bent-core liquid crystals with azo and azoxy linkages: structural and nonlinear optical properties and photoisomerization

AuthorsFolcia, César L.; Alonso, Ibon; Ortega, Josu; Etxebarria, Jesús; Pintre, Inmaculada C.; Ros, M. Blanca
Issue Date26-Aug-2006
PublisherAmerican Chemical Society
CitationChemistry of Materials 18(19): 4617–4626 (2006)
AbstractWe present a structural study of the mesophases of three achiral bent-core compounds with azo and azoxy bonds. The study is based on textures observation and small-angle X-ray diffraction. It is found that the materials exhibit columnar and tilted smectic mesophases. Optical second-harmonic generation measurements are performed on aligned samples of one of the compounds, and the whole second-order susceptibility tensor is determined. Finally, some simple aspects of the photoisomerization of the materials are examined.
Description10 pages, 13 figures, 1 scheme.
Publisher version (URL)http://dx.doi.org/10.1021/cm060256p
Appears in Collections:(ICMA) Artículos
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