PYRAZOLECARBOXYLATES OF LANTHANIDES EXHIBITING LUMINESCENT PROPERTIES IN VISIBLE RANGE Russian patent published in 2018 - IPC C07D231/14 C07D409/04 C09K11/06 

FIELD: chemistry.

SUBSTANCE: invention relates to lanthanide complexes with pyrazole acid derivatives, namely to novel pyrazolecarboxylates of lanthanides of general formula: Ln(L)₃(H₂O)_x, in which L denotes C₃N₂A¹A²B¹B²COO^-, and has the structural formula given below, and where Ln=Eu, Tb, Gd, x=2 and A²=B¹=B²=H or A²=CH₃, B¹=H, B²=C₆H₅ or A¹=CH₃, B¹=H, B²=C₆H₅ or A¹=CH₃, B¹=I, B²=H or Ln=Eu, x=6 and A¹=CH₃, B¹=H, B²=C₄H₃S or Ln=Eu, x=2 and A²=CH₃, B¹=H, B²=C₄H₃S. .

EFFECT: these lanthanide complexes exhibit luminescent properties and can be used in optical instruments and as labels for optical biovisualization.

1 cl, 1 tbl, 1 ex