Luminescent properties of yttrium diphenylphosphinate activated by europium

Francisco, Cristina S.; Stucchi, Elizabeth Berwerth; Abreu, Edson M. de

doi:10.1016/j.jallcom.2005.10.067

Cited by 5 publications

(4 citation statements)

References 10 publications

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“…The presence of an intense low-angle diffraction, close to seven 2θ/degrees (interplanar spacing d ∼ 12 Å), is also repeated in all the synthesized coordination compounds. These results are similar to the behavior shown by MOFs [38] and corroborate those described in the literature [26,28,29,32].…”

Section: Resultssupporting

confidence: 92%

“…It is known that previous studies [28,29,32] have already pointed to the possibility of Eu 3+ occupying more than one symmetry site in yttrium, lanthanum and gadolinium diphenylphosphinates matrices doped with trivalent europium. However, it is the first time that the existence of at least two symmetry sites is verified in a pure europium diphenylphosphinate matrix -[Eu(dpp) 3 ] n synthesized by different methodologies.…”

Section: Resultsmentioning

confidence: 99%

“…Francisco et al [29] suggested the presence of one or more symmetry sites for RE 3+ in a europium-doped yttrium diphenylphosphinate matrix. In another study [30], applying the hydrothermal synthesis, they obtained unidimensional structures in the form of rods.…”

Section: Introductionmentioning

confidence: 99%

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A new overview on rare earth diphenylphosphinates: Europium characteristic luminescence of low dimensional nanostructured materials

Bim

Stucchi

Cebim

2018

Journal of Luminescence

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Porous crystalline luminescent polymer compounds have attracted huge interest due to their supramolecular structures, aesthetically attractive structural topologies and potentialities for innovative technological applications. However, wet route precipitation or hydro/solvothermal methods may lead to the formation of highly insoluble porous coordination networks, as is true of europium diphenylphosphinates -[Eu(dpp) 3 ] n . The aim of this work was to study the optical behavior and its relation to the structure of [Eu(dpp) 3 ] n complexes obtained through different synthetic approaches by precipitation: wet route (WRS), ultrasound-assisted wet route (U-WRS), modulator-assisted wet route (M-WRS) and wet route synthesis with solvothermal treatment (S-WRS). These methodologies allowed to synthetize crystalline materials in which both chelate and bridged coordination modes coexist, and they were efficient for obtaining stick-shaped 1D1 nanostructured materials with well-defined optical properties. Changes in precipitation kinetics and crystalline phases formation rate led to a distribution of Eu 3+ ions in higher symmetry sites (HSS). S-WRS, transforming part of the less symmetrical sites into HSS, provided a better ordering of [Eu(dpp) 3 ] n . Furthermore, this is the first report of two or more symmetry sites for Eu 3+ in a pure [Eu(dpp) 3 ] n matrix.

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Section: Resultssupporting

confidence: 92%

Section: Resultsmentioning

confidence: 99%

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A new overview on rare earth diphenylphosphinates: Europium characteristic luminescence of low dimensional nanostructured materials

Bim

Stucchi

Cebim

2018

Journal of Luminescence

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“…• C) [27][28][29]. We have also reported lanthanide coordination polymers with three dimensional tight packing structures [30].…”

Section: Introductionmentioning

confidence: 71%

Thermostable Nano Luminophores Composed of Europium Ions and Organic Ligands

Onodera

Nakajima

Nakanishi

et al. 2015

e-J. Surf. Sci. Nanotech.

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The luminescent nanoparticles with Eu(III) ions are reported. Standard nanoparticles are prepared by the reaction of europium chloride with dpp (diphenylphospinic acid) joint ligands. The size-controlled nanoparticles are synthesized by the reaction of Eu(hfa)3(H2O)2 (hfa: hexafluoroacetylacetonate) with bidentate dpbp ligands (dpbp: 4,4'-bis(diphenylphosphoryl)biphenyl) and monodentate ligands (TPPO: triphenylphosphine oxide). Their particle sizes were characterized using TEM and dynamic light scattering (DLS) measurements. Their luminescence properties were estimated by the emission spectra and lifetimes.

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