Title: Nonlinear Optical Thin Film Device from a Chiral Octopolar Phenylacetylene Liquid Crystal
Authors: de Vega, Laura ×
Van Cleuvenbergen, Stijn
Depotter, Griet
García-Frutos, Eva M
Gómez-Lor, Berta
Omenat, Ana
Tejedor, Rosa M
Serrano, José Luis
Hennrich, Gunther
Clays, Koen #
Issue Date: Dec-2012
Publisher: American Chemical Society
Series Title: Journal of Organic Chemistry vol:77 issue:23 pages:10891-10896
Abstract: A set of chiral discotic phenylacetylenes have been synthesized by 3-fold Sonogashira coupling between different ethynylbenzenes and triiodobenzenes. The resultant bulk materials are fully characterized by polarized optical microscopy (POM), differential scanning calorimetry (DSC), and X-ray diffraction. The octopolar nature of the target compounds is studied by UV-vis absorption spectroscopy and hyper-Raleigh scattering in solution. Optimization of the donor-acceptor substitution yields both high hyperpolarizability values and appreciable mesomorphic properties. A simple thin film device for second harmonic generation has been prepared from the nitro-substituted liquid crystalline derivative.
ISSN: 0022-3263
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Molecular Imaging and Photonics
× corresponding author
# (joint) last author

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