Luminescence properties of 2-benzoyl-1,3-indandione based Eu3+ ternary and tetrakis complexes and their polymer films

Māliņa, Ilze; Kampars, Valdis; Belyakov, Sergey

doi:10.1016/j.dyepig.2018.07.003

Cited by 14 publications

(6 citation statements)

References 31 publications

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“…We have found that the structure of the Ln 3+ tetrakis(b-diketonate) complex with Na + ions as counterions is built through 1D polymeric chains with alternating Na + and [Ln(b-diketonate) 4 ] À units, [23][24][25] whereas Ln 3+ tetrakis(b-diketonate) complexes with large size counterions have a loose-packing pattern in a crystal lattice. 26,27 Therefore, the steric effects of counterions lead to not only the change of the Eu 3+ coordination environment, but also the avoidance of molecular aggregation-induced luminescence quenching. 28 To realize the photonic applications, the luminescent films were prepared by dissolving PMMA in DMF in the presence of different contents of complex 1 in mass, followed by dropcasting on a PMMA slab, and their photophysical properties were investigated on the PMMA slab.…”

Section: Resultsmentioning

confidence: 99%

“…We have found that the structure of the Ln 3+ tetrakis(β-diketonate) complex with Na + ions as counterions is built through 1D polymeric chains with alternating Na + and [Ln(β-diketonate) 4 ] − units, 23–25 whereas Ln 3+ tetrakis(β-diketonate) complexes with large size counterions have a loose-packing pattern in a crystal lattice. 26,27 Therefore, the steric effects of counterions lead to not only the change of the Eu 3+ coordination environment, but also the avoidance of molecular aggregation-induced luminescence quenching. 28…”

Section: Resultsmentioning

confidence: 99%

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Visible-light excitable, highly transparent and luminescent films with an ultrahigh loading of a europium(III) complex

et al. 2022

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Visible-light excitable, highly transparent and luminescent films with an ultrahigh loading of a europium(III) complex

et al. 2022

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“…As for other ligands, aliphatic compounds with carboxylic groups can also be coordinated with Ln 3+ to form complexes, but they do not usually emit fluorescence. However, Ln 3+ ions with two or three different kinds of ligands will form different possible complex structures [ 20 , 21 , 22 , 23 ].…”

Section: Introductionmentioning

confidence: 99%

Novel Cuboid-like Crystalline Complexes (CLCCs), Photon Emission, Fluorescent Fibers, and Bright Red Fabrics of Eu3+ Complexes Adjusted by Amphiphilic Molecules

Tang

Liu

et al. 2022

Polymers

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With the growing needs for flexible fluorescence emission materials, emission fibers and related wearable fabrics with bright emission properties have become key factors for wearable applications. In this article, novel cuboid-like crystals of Eu3+ complexes were generated. Except for light-energy-harvesting ligands of thenoyltrifluoroacetone (TTA) and 1,10-phenanthroline hydrate (Phen), the crystal structures were adjusted by other functional amphiphilic molecules. Not only does ETPC-SA, adjusted by stearic acid, have a regular cuboid-like crystal with a size of about 2 μm size, but it also generates the best photon emission property, with a fluorescence quantum yield of 98.4% fluorescence quantum yield in this report. Furthermore, we succeeded in producing novel fluorescent fibers by mini-twin-screw extrusion, and it was easy to form bright red fabrics, which are equipped with strong fluorescence intensity, flexibility, and a smooth hand feeling, with the normal fabricating method in our work. It is worth noting that ETPC-HQ fibers, which carry a crystal complex adjusted by hydroquinone, possess the lowest quantum yield but have the longest average fluorescence lifetime of 1259 µs. This result means that a low-density polyethylene (LDPE) matrix could make excited electrons stand in the excited state for a relatively long time when adjusted by hydroquinone, so as to increase the afterglow property of fluorescent fibers.

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“…22 Typically, they are based on copper(I) complexes or organic compounds. [23][24][25] The transition metal [26][27][28] and rare-earth [29][30][31] coordination compounds with 2-acyl-1,3-indandione (acind) ligands have also acted as luminescence sensitizers in both photo and electroluminescence processes. 32 Furthermore, recent studies have investigated the effect of p-linker length connecting donor and acceptor groups on several properties of cyclic β-diketones-1,3-indandiones, such as thermal, electrochemical, and spectroscopic properties.…”

Section: Introductionmentioning

confidence: 99%

“…Consequently, Al-(2-acyl-1,3-indandione) complexes may be used to obtain novel diode devices with tunable structures and properties different from those ones presented by devices based on traditional Al-hydroxyquinolinate derivative complexes as emitting layers. [29][30][31][32] In this study, the synthesis, characterization, and luminescent properties of novel Al 3+ -complexes based on 2-acyl-1,3-indandionate ligands were investigated. The photoluminescent properties of the complexes were analyzed in both powder and film forms.…”

Section: Introductionmentioning

confidence: 99%

Tuning Emitting Color of Electroluminescent Devices Containing Tris(2‑acyl‑1,3‑indandionate)aluminum(III) Complexes as Emitting Layers

Costa

Moura

Aderne

et al. 2019

J. Braz. Chem. Soc.

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In this study, a novel type of tris(2-acyl-1,3-indandione)-aluminum(III) coordination compounds of the general formula [Al(acind) 3 ]H 2 O, where 2-acyl-1,3-indandione (acind), 2-acetyl-1,3-indandione (aind), 2-benzoyl-1,3-indandione (bind), and 4-methyl-2-benzoyl-1,3-indandione (mbind), were synthesized and characterized by elemental analysis (CHN), Fourier transform infrared (FTIR) and nuclear magnetic resonance (1 H NMR) spectroscopies, thermal analysis (TG/DTG and DTA), and optical absorption spectroscopy in the UV-Vis region. These compounds present remarkably high green luminescence in powder and in thin-film forms. However, when these compounds are applied in glass/ITO/β-NPB/spiro-2CBP/[Al(acind) 3 ]/Al and glass/ITO/β-NPB/ [Al(acind) 3 ]/LiF/Al electroluminescent devices, where spiro-2CBP is 2,7-bis(carbazol-9-yl)-9,9spirobifluorene and β-NPB is N,N'-bis(naphthalen-2-yl)-N,N'-bis(phenyl)-benzidine, the emission color tuned from green to red, reflecting a change from the direct charge recombination in the emitting layer of the [Al(acind) 3 ] complexes to an exciplex-based emission in which [Al(acind) 3 ] complexes and spiro 2-CBP acted as acceptor and donor, respectively. These results suggest that [Al(acind) 3 ] complexes have potential applications as molecular light converter materials for fabricating new electroluminescent devices.

show abstract

Luminescence properties of 2-benzoyl-1,3-indandione based Eu3+ ternary and tetrakis complexes and their polymer films

Cited by 14 publications

References 31 publications

Visible-light excitable, highly transparent and luminescent films with an ultrahigh loading of a europium(III) complex

Visible-light excitable, highly transparent and luminescent films with an ultrahigh loading of a europium(III) complex

Novel Cuboid-like Crystalline Complexes (CLCCs), Photon Emission, Fluorescent Fibers, and Bright Red Fabrics of Eu3+ Complexes Adjusted by Amphiphilic Molecules

Tuning Emitting Color of Electroluminescent Devices Containing Tris(2‑acyl‑1,3‑indandionate)aluminum(III) Complexes as Emitting Layers

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