DIVERSE-LIGAND COMPLEX COMPOUNDS OF TERBIUM WITH PHENANTHROLINE, THE LUMINESCENCE INTENSITY OF WHICH DEPENDS ON TEMPERATURE Russian patent published in 2017 - IPC C09K11/06 C07F5/00 B42D15/00 

FIELD: chemistry.

SUBSTANCE: diverse-ligand complex terbium and phenanthroline compounds of the formula Tb (L)₃(Phen) and solvates thereof, with the exception of tris-salicylate Tb(sal)₃(Phen), where Tb (L)₃ is terbium complex with an anionic organic ligand L, exhibiting ionic visually recorded terbium luminescence at room temperature, (phen) is phenanthroline. These compounds have a high temperature sensitivity at integrated luminescence intensities ratio of I₇₇/I₃₀₀≥10, where I₇₇ and I₃₀₀ are integrated luminescence intensities at ₇₇ K and 300 K, respectively.

EFFECT: possibility of compounds application as fluorescent labels for paper and additional degree of security protection.

5 cl, 1 tbl, 12 ex