Ln3+-mediated formation of luminescent ionogels

Wen, Tingting; Li, Huanrong; Wang, Yige; Wang, Lingyun; Zhang, Wenjun; Zhang, Li

doi:10.1039/c2tc00625a

Cited by 39 publications

(34 citation statements)

References 44 publications

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“…We recently reported a novel organic salt containing an aromatic carboxylic acid (IL-ACC). [39] Ionogels and complexes, obtained by coordination of IL-ACC with Eu 3 + and Tb 3 + ions under appropriate experimental conditions, showed luminescence characteristics of Ln 3 + due to energy transfer from IL-ACC to both Eu 3 + and Tb 3 + ions. [39] Herein we replaced the methyl group on the imidazole ring of IL-ACC with a butyl group and obtained a similar organic salt, which we denoted Bu-IL-ACC (Scheme 1).…”

Section: Introductionmentioning

confidence: 98%

“…[39] Ionogels and complexes, obtained by coordination of IL-ACC with Eu 3 + and Tb 3 + ions under appropriate experimental conditions, showed luminescence characteristics of Ln 3 + due to energy transfer from IL-ACC to both Eu 3 + and Tb 3 + ions. [39] Herein we replaced the methyl group on the imidazole ring of IL-ACC with a butyl group and obtained a similar organic salt, which we denoted Bu-IL-ACC (Scheme 1). Ionic Ln 3 + complexes of the organic salt and the corresponding luminescent hybrid materials based on Laponite were synthesized and their luminescence properties were investigated.…”

Section: Introductionmentioning

confidence: 98%

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Luminescent Hybrid Materials Based on Laponite Clay

Wang

et al. 2014

Chemistry A European J

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The spectroscopic behavior of ionic Eu(3+) or Tb(3+) complexes of an aromatic carboxyl-functionalized organic salt as well as those of the hybrid materials derived from adsorption of the ionic complexes on Laponite clay are reported. X-ray diffraction (XRD) patterns suggest that the complexes are mainly adsorbed on the outer surfaces of the Laponite disks rather than intercalated within the interlayer spaces. Photophysical data showed that the energy-transfer efficiency from the ligand to Eu(3+) ions in the hybrid material is increased remarkably with respect to the corresponding ionic complex. The hybrid material containing the Eu(3+) complex shows bright red emission from the prominent (5) D0 →(7) F2 transition of Eu(3+) ions, and that containing the Tb(3+) complex exhibits bright green emission due to the dominant (5) D4 →(7) F5 transition of Tb(3+) ions.

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Section: Introductionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 98%

Luminescent Hybrid Materials Based on Laponite Clay

Wang

et al. 2014

Chemistry A European J

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“…[11] In addition, the bands at ñ = 1597 and 1418 cm À1 in the FTIR spectrum of [Eu(-hfa) 3 ]@BA-PIL are assigned to the asymmetric and symmetric vibrations of the COO À group, respectively;t his implies the formation of ac helated complex between BA-PIL and Eu 3 + . [12] The coordination behavior between BA-PIL andT b 3 + can be also confirmed from the FTIR spectrum of [Tb(hfa In the presenceo fb enzoica cid, the absorbance of benzoica cid, ranging from l = 240 to 310 nm, dominates the whole excitation spectrum.I nt he hybrid [Eu(hfa) 3 ]@BA-PIL system, much strongerc haracteristic excitations of both HFAa nd benzoic acid were observed, which indicated that population of the Eu 3 + excited state through excitation of the coligand was much more efficient than direct excitation of the benzoic acid or [Eu(hfa) 3 ]p recursors individually. [13] The emission spectra of [Eu(hfa) 3 (Table 1).…”

Section: Resultsmentioning

confidence: 57%

Lanthanide Luminescence Improvement by Using a Functional Poly(Ionic Liquid) as Matrix and Co‐ligand

Wang

Chen

et al. 2016

Chemistry An Asian Journal

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A poly(ionic liquid) (BA-PIL) carrying a benzoic acid group in each repeating unit of the polymer architecture, which has the dual function of acting as a matrix and second ligand, has been developed. Through the incorporation of BA-PIL with the complex [Ln(hfa)3 ] (hfa=hexafluoroacetylacetone) as an emitting precursor, significant luminescence improvement was achieved in the obtained hybrid materials. Confinement of the lanthanide(III) complexes within the rigid chains of the polymer, together with replacement of the coordinated water molecules, are believed to be ascribed to the enhanced optical properties.

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“…This method principally involves (1) the synthesis of task-specific ionic liquid (TSIL) in which organic moieties capable of coordinating to and sensitizing RE 3+ ions are covalently linked to the organic cations and (2) the coordination reaction of the TSIL with RE 3+ ions under optimal conditions. Up to now, TSILs functionalized with organic ligands such as terpyridine [40,41], β-diketone [9], aromatic carboxylic acid [39], and phosphine oxides [42] characteristic emission under UV illuminations is due to the energy transfer from the TSIL to RE 3+ ions. The emission color of the transparent gels can be fine-tuned by changing RE salts (Fig.…”

Section: Grafting Re Compounds To the Organic Cations Of Ionic Liquidsmentioning

confidence: 99%

“…Typically, radiationless decay caused by concentration quenching becomes pronounced at such concentrations in traditional solid luminescent materials. Dy-containing ionic liquids of low-melting point exhibiting both magnetism and luminescence were also synthesized according to similar strategy by the same group [39].…”

Section: Incorporating Re Compounds In Anions Of Ionic Liquidsmentioning

confidence: 99%

Ionic Liquids and Rare Earth Soft Luminescent Materials

Li¹,

Wang²,

Wang³

et al. 2016

Green Chemistry and Sustainable Technology

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Soft luminescent materials resulting from the introduction of rare earth compounds to ionic liquids favorably combine the properties of ionic liquids with unique optical properties of rare earth compounds such as sharp emission band, long decay time of the excited state, and the tunable emission color over the entire spectral range of interest from UV to infrared spectral region. This chapter summarizes the progress ever made in such kind of soft luminescent materials, especially those that have been made in our research group. Our emphasis is put on the preparation strategies for the soft luminescent materials, the luminescent ionogels prepared from the immobilization of rare earth-containing ionic liquids by organosilica and polymers, and the unexpected luminescent enhancement of Eu 3+ -β-diketonate complexes hosted in zeolite L nanocrystals and nanoclay upon addition of ionic liquid bearing bulky triethoxysilane groups in water.

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Ln3+-mediated formation of luminescent ionogels

Cited by 39 publications

References 44 publications

Luminescent Hybrid Materials Based on Laponite Clay

Luminescent Hybrid Materials Based on Laponite Clay

Lanthanide Luminescence Improvement by Using a Functional Poly(Ionic Liquid) as Matrix and Co‐ligand

Ionic Liquids and Rare Earth Soft Luminescent Materials

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