LUMINESCENT COORDINATION COMPOUNDS OF LANTHANIDES FOR LIGHT-EMITTING DIODES Russian patent published in 2013 - IPC C09K11/77 C01F17/00 C07D471/04 

FIELD: chemistry.

SUBSTANCE: invention relates to complexes of lanthanides and organic ligands which are luminescent in the visible spectrum and are used in electroluminescent devices, means of protecting security paper and documents from falsification etc. Disclosed are novel luminescent coordination compounds of lanthanides of formula: where Ln is Eu³⁺, Tb³⁺, Dy³⁺, Sm³⁺, Gd³⁺.

EFFECT: said compounds have high luminescence intensity and considerable thermal tolerance of up to 400°C, which enables use thereof in modern production of light-emitting diodes.

4 dwg, 2 tbl