Synthesis and magnetic properties of liquid crystalline lanthanide complexes with alkylsulfate counterions |
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| Authors: | Malykhina L V Prosvirin A V Haase W Galyametdinov Yu G |
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| Institution: | (1) Kazan State Technological University, 68 ul. K. Marksa, 420015 Kazan, Russian Federation;(2) E. K. Zavoisky Kazan Physical-Technical Institute of the Russian Academy of Sciences, 10/7 ul. Sibirsky Trakt, 420029 Kazan, Russian Federation;(3) Institute für physikalische Chemie I, Technische Universität Darmstadt, 20 Petersenstr., D-64257 Darmstadt, Germany |
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| Abstract: | The reaction of Schiff"s base L with lanthanide alkylsulfates affords liquid crystalline complexes with the general formula L3Ln(CnH2n+1OSO3)3. The liquid crystalline structure and magnetic properties are studied by polarization thermal microscopy, differential scanning calorimetry, X-ray diffraction, and measurement of magnetic susceptibility. The temperatures of the existence of the mesophase and magnetic anisotropy of the complexes with the same lanthanide depend on the chain length of the alkyl fragment in the sulfate anion. |
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| Keywords: | metallomesogens lanthanides structure magnetic susceptibility |
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