Influence of β-diketone structure on optical properties of formed by Eu(III) adducts photostable transparent films with effective luminescence

Luminescent adducts of Eu(III) tris(beta-diketonate) with 1,10-phenanthroline were synthesized. The effect of the beta-diketone structure on thermodynamic and photophysical properties of Eu(III) complexes was characterized. Sensitization of Eu(III) ion by various beta-diketones was evaluated. The synthesized compounds are shown to form isotropic vitrified structures at room temperature allowing to produce optically isotropic vitrified films with light transmittance of over 90% and efficient luminescence. These photostable films were characterized as potential luminescent temperature sensors.

Automated summary

Luminescent adducts of Eu(III) tris(beta-diketonate) with 1,10-phenanthroline were synthesized and their properties were characterized. Sensitization of Eu(III) ion by various beta-diketones was evaluated. The synthesized compounds were found to form optically isotropic vitrified films with high light transmittance and efficient luminescence, showing potential as luminescent temperature sensors.