New luminescent materials based on amphiphilic complexes of lanthanides with 4-(octadecyloxy)pyridine-2,6-dicarboxylic acid

Abstract

Efficiently luminescing in the visible region complexes of 4-(octadecyloxy)pyridine-2,6-dicarboxylic acid with europium(iii), terbium(iii), samarium(iii), thulium(iii) and gadolinium(iii) were synthesized. Analysis of the luminescence spectra revealed that the emission intensity of the terbium complex significantly exceeds the luminescence intensity of other lanthanides in the visible region. Langmuir monolayers were for the first time formed on the surface of an aqueous subphase using the terbium complex. The obtained data indicate that these complexes hold promise as materials for the development of molecular photonics and optoelectronic devices.