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Title: Synthesis, mesomorphism, and unusual magnetic behaviour of lanthanide complexes with perfluorinated counterions
Authors: Galyametdinov, Yury G.
Haase, Wolfgang
Malykhina, Larisa
Prosvirin, Andrey
Bikchantaev, Ildar
Rakhmatullin, Ajdar
Binnemans, Koen # ×
Issue Date: 2001
Publisher: Wiley-v c h verlag gmbh
Series Title: Chemistry - a European Journal vol:7 issue:1 pages:99-105
Abstract: Lanthanide complexes of the Schiff base ligand 4-dodecyloxy-N-hexadecyl-2-hydroxybenzaldimine and with perfluorinated alkyl sulfate counterions were synthesised. All of the metal complexes show a smectic A mesophase. The viscosity of this mesophase is much lower than that of analogous compounds with nitrate or alkyl sulfate counterions. The behaviour of these new highly anisotropic molecular magnetic materials was studied using high-temperature X-ray measurements in an external magnetic field and temperature-dependent magnetic susceptibility measurements. The mu (eff) -versus-temperature curve is more comparable with those expected for nematic phases than for smectic phases. The luminescence spectrum of a EuIII compound shows that the values of the second rank crystal field parameters are very large. The huge magnetic anisotropy can be related to this strong crystal-field perturbation.
URI: 
ISSN: 0947-6539
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Molecular Design and Synthesis
× corresponding author
# (joint) last author

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