Title: Anisotropic molecular magnetic materials based on liquid-crystalline lanthanide complexes
Authors: Binnemans, Koen ×
Van Deun, Rik
Görller-Walrand, Christiane
Haase, Wolfgang
Bruce, Duncan W.
Malykhina, Larisa
Galyametdinov, Yury G. #
Issue Date: 2001
Publisher: Elsevier science bv
Series Title: Materials science & engineering c-biomimetic and supramolecular systems vol:18 issue:1-2 pages:247-254
Abstract: The alignment of liquid crystals in an external magnetic field is discussed. Special attention is paid to paramagnetic metallomesogens containing trivalent lanthanide ions. The huge magnetic anisotropy of rare-earth compounds is favourable to achieve easy magnetic alignment. The principle of orientation of liquid-crystalline lanthanide complexes is illustrated for Schiff base complexes of the type [Ln(LH)3(NO3)3], where Ln is a trivalent lanthanide ion and LH is a salicylaldimine. The compounds exhibit a smectic A phase. By a proper choice of the lanthanide ion. it is possible to align the director either parallel or perpendicular to the magnetic field. When the aligned mesophase is cooled in the presence of a magnetic field, the mesophase order is frozen into the glass state and an anisotropic molecular magnetic material is obtained.
ISSN: 0928-4931
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Molecular Design and Synthesis
× corresponding author
# (joint) last author

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