We report rare-earth-containing metallomesogens with newly synthesized ligands represented by the β-diketone 1-(4-(4-propylcyclohexyl)phenyl)octane-1,3-dione (CPDk3-5) and the Lewis base 5,5′-bis(heptadecyl)-2,2′-bipyridine (bpy17-17). The stoichiometry of the complexes is [Ln(CPDk3-5)3bpy17-17], where Ln is a trivalent rare-earth ion (La, Sm, Eu, Gd, Tb, Dy, Ho, Tm, and Yb). Although the ligands themselves do not form any mesophase, the respective metal complexes produce nematic and smectic A phases. The mesogenic rare-earth complexes were characterized by NMR, MS, POM, DSC, X-ray diffraction, magnetic susceptibility measurements, and dielectric spectroscopy. The metal complexes display a remarkably large magnetic anisotropy in the mesophase. These nematic liquid crystals can, therefore, be easily aligned by an external low-threshold magnetic field.
Original languageEnglish
Pages (from-to)661-671
Number of pages11
JournalInorganic Chemistry
Volume60
Issue number2
DOIs
StatePublished - 18 Jan 2021

    Scopus subject areas

  • Inorganic Chemistry
  • Physical and Theoretical Chemistry

    Research areas

  • ANISOTROPY, COMPLEXES, CONTAINING LIQUID-CRYSTALS, CONTROLLED POLARIZED LUMINESCENCE, DIELECTRIC-PROPERTIES, LANTHANIDE-CONTAINING METALLOMESOGENS, OPTICAL-PROPERTIES, SCHIFFS BASES, VITRIFIED FILM, X-RAY

ID: 87794023