Synthesis and mesogenic properties of azomethine complexes of lanthanides with alkyl sulfate anions
摘要:
Liquid-crystalline cationic complexes of lanthanides with azomethines containing the alkyl sulfate anion as the counterion were synthesized. The temperatures of existence of the mesophase of the complexes with the alkyl sulfate anion were by 80-100 degrees C lower than those of similar complexes with the Cl- and NO3- counterions.
作者:L. V. Malykhina、A. V. Prosvirin、W. Haase、Yu. G. Galyametdinov
DOI:10.1023/a:1011373510384
日期:——
The reaction of Schiff's base L with lanthanide alkylsulfates affords liquid crystalline complexes with the general formula L(3)Ln(CnH2n+1OSO3)(3). The liquid crystalline structure and magnetic proper-ties 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.
Synthesis and mesogenic properties of azomethine complexes of lanthanides with alkyl sulfate anions
作者:Yu. G. Galyametdinov、G. I. Ivanova、I. V. Ovchinnikov、K. Binnemans、D. V. Bruce
DOI:10.1007/bf02494572
日期:1999.2
Liquid-crystalline cationic complexes of lanthanides with azomethines containing the alkyl sulfate anion as the counterion were synthesized. The temperatures of existence of the mesophase of the complexes with the alkyl sulfate anion were by 80-100 degrees C lower than those of similar complexes with the Cl- and NO3- counterions.