Journal
DYES AND PIGMENTS
Volume 148, Issue -, Pages 492-500Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.dyepig.2017.08.018
Keywords
Lanthanidomesogens; Smectic mesophase; Photoluminescence; Glassy state; Polarized light
Funding
- Russian Federation [MD-6102.2016.3]
- CNRS
- University of Strasbourg
- RFBR [17-03-00258a]
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A new series of beta-diketonate lanthanide adducts with 5,5 '-di(heptadecyl)-2,2 '-bipyridine, showing a smectic thermotropic mesomorphism, has been synthesized. The peculiar thermodynamic dependence of the phase transitions with the lanthanide ion is described, and the liquid crystalline properties of the series have been analyzed by SAXS. The luminescence in the solid state for the Eu(III), Sm(III), Yb(III), Er(III) and Nd(III) adducts was investigated. The enhancement of the luminescence by the orientation of the LC domains through film shear deformation is demonstrated. (C) 2017 Elsevier Ltd. All rights reserved.
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