Photoactive Hybrid Materials of Lanthanide (Eu³⁺, Tb³⁺, Sm³⁺) Beta‐Diketonates and Polymer Resin Through Ionic Liquid Bridge

Abstract

A special multifunctional ionic liquid compound (1-methyl-3-(2-(thiocarboxyoxy)-ethyl)-2H-imidazole-1,3-diium bromide (SHIL)) is used as the chemical bridge to link lanthanide beta-diketonates and polymer resin, which are designated as Ln(L)4-SHIL-WR/MR (Ln = Eu, Tb, Sm; L = thenoyltrifluoroacetonate (TTA), acetylacetonate (AA), dibenzoylmethane (DBM); WR = Wang resin, MR = Merrifield resin). Among SHIL and polymer resin are assembled to form covalently bonded system through condensation reaction. Then tetrakis lanthanide beta-diketonates are linked to SHIL through ion-exchange reaction. Physical characterization and especially the photoluminescent performance of the multicomponent hybrids are studied. The hybrid materials possess good stability and excellent luminescent property. The results provide useful path to obtain luminescent hybrids for further practical application.

Highly luminescent lanthanide CPs based on dinuclear cluster: crystal structure and sensitive Trp sensor

“…The TGA curve reveals that 1 and 2 begin to decompose and both show two evident weight loss from 322 C, which corresponding to the collapsion of the structure. [28][29][30][31] For 2, when xing the strongest emission at 619 nm ( 5 D 0 / 7 F 2 ), the excitation spectrum of 1 displays a broad band covering from 235 to 335 nm (Fig. 16 Luminescence Luminescence of solid sample 1 and 2 were tested at the room temperature.…”

“…4). [28][29][30][31] For 2, when xing the strongest emission at 619 nm ( 5 D 0 / 7 F 2 ), the excitation spectrum of 1 displays a broad band covering from 235 to 335 nm (Fig. 5).…”

Luminescent Lanthanide Complex Sensor for Acac and Cd2+

“…Under the best excitation at 302 nm, Tb complex displays characteristic emission peaks at about 486, 542, 582, 618 nm (Fig. 2a), which belongs to the 5 D 4 → 7 F J ( J = 6, 5, 4 and 3) transitions (30), respectively. The intensity of 5 D 4 → 7 F 5 transition is the strongest in emission spectra, so the Tb 3+ is convinced to locate in a site without inversion symmetry.…”

Photofunctional Rare Earth Materials Based on Ionic Liquids

“…Under this strategy, some inorganic oxide, metal, or sulfide nanoparticles such as ZnO, ZnS, Ag 2 S, and rare earth tetrakis complexes can be used to construct multicomponent composite material system. The photoluminescence, especially the white luminescent integration, is discussed in detail [62][63][64][65].…”