Nonlinear optical thin film device from a chiral octopolar phenylacetylene liquid crystal

De Vega, L. ; Van Cleuvenbergen, S. ; Depotter, G. ; García-Frutos, E.M. ; Gómez-Lor, B. ; Omenat, A. ; Tejedor, R.M. (Universidad de Zaragoza) ; Serrano, J.L. (Universidad de Zaragoza) ; Hennrich, G. ; Clays, K.

Resumen: 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.

Idioma: Inglés

DOI: 10.1021/jo302297j

Año: 2012

Publicado en: Journal of Organic Chemistry 77, 23 (2012), 10891-10896
ISSN: 0022-3263

Factor impacto JCR: 4.564 (2012)

Categ. JCR: CHEMISTRY, ORGANIC rank: 10 / 57 = 0.175 (2012) - Q1 - T1

Financiación: info:eu-repo/grantAgreement/ES/MEC/CTQ2010-1881
Financiación: info:eu-repo/grantAgreement/ES/MEC/MAT2011-27978-C02-01

Tipo y forma: Article (PostPrint)

Área (Departamento): Área Química Orgánica (Dpto. Química Orgánica)