Anisotropy of the magnetic susceptibility of mesogeneous lanthanide complexes

Liquid crystalline adducts of lanthanide tris(β-diketonates) with 5,5′-diheptadecyl-2,2′-bipiridine forming a nematic mesophase were obtained. Molar constants of magnetic birefringence and the magnetic susceptibility anisotropy of synthesized complexes were determined according to the magnetic birefringence in solution. The values of magnetic susceptibility anisotropy are two orders of magnitude higher than those of organic liquid crystals.