Synthesis and photoluminescent properties of Eu (III) complexes with fluorinated β-diketone and nitrogen heterocyclic ligands

Wang, Dan; Luo, Zheng; Liu, Zhao; Wang, Dun‐Jia; Fan, Ling; Yin, Guodong

doi:10.1016/j.dyepig.2016.05.026

Cited by 50 publications

(12 citation statements)

References 25 publications

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“…The infrared spectra of β‐diketone complexes have been described in many reports, [ 28,29 ] and their characteristic spectral regions were at 1650–1100 cm −1 wavelengths. The characteristic infrared spectra of NTA and PBTA ligands, NTA/CaF 2 :Er 3+ /Nd 3+ and PBTA/CaF 2 :Er 3+ /Nd 3+ nanoparticles are shown in Figure 2.…”

Section: Resultsmentioning

confidence: 99%

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Enhanced luminescence of CaF₂:Er³⁺/Nd³⁺ nanoparticles coated by fluorinated β‐diketone

Song

Shi

et al. 2020

Luminescence

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In this study, several CaF2 nanoparticles doped with individual ions Nd3+ and Er3+ were synthesized with ligands pentafluorobenzoyl trifluoroacetone (PBTA) and 2‐naphthoyltrifluoroacetone (NTA), which served as modifiers. Influence of the modifiers on the luminescence properties of the nanoparticles was investigated. The as‐prepared nanoparticles had a similar size and dispersion with an irregular spherical shape, which reduced the influence of particle size on the luminescence of the nanoparticles. The luminescence spectra of these nanoparticles showed the characteristic luminescence of the central lanthanide ions under excitation of the maximum excitation wavelength. Compared with nanoparticles modified by the NTA ligand, nanoparticles modified by the PBTA ligand possessed stronger luminescence intensity for the doping Nd3+ or Er3+ ions.

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Section: Resultsmentioning

confidence: 99%

“…[ 24 ] The bands appearing at 1488 cm −1 were assigned to the stretching vibrations of C=C bonds. [ 29 ] Absorption bands at 1137 and 1108 cm −1 were attributed to the asymmetric and symmetric CF 3 stretching vibrations. [ 30 ] In addition, bands due to the stretching vibration of C–F bonds were observed at 1202 cm −1.…”

Section: Resultsmentioning

confidence: 99%

Enhanced luminescence of CaF₂:Er³⁺/Nd³⁺ nanoparticles coated by fluorinated β‐diketone

Song

Shi

et al. 2020

Luminescence

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“…The photoluminescence of 9 and 10 was measured in the solid state at room temperature. For Compound 9 (Figure 4) the spectrum shows an intense and broad band with two peak maxima at 300 and 371 nm corresponding to the π→π* transitions of 4,4 -Me 2 bipy and btfa − ligands, respectively [36]. The excitation wavelength for the emission spectrum (λ em ) is 371 nm.…”

Section: Luminescence Emission Of Terbium (9) and Europium (10) Complexesmentioning

confidence: 99%

Diverse Coordination Numbers and Geometries in Pyridyl Adducts of Lanthanide(III) Complexes Based on β-Diketonate

et al. 2021

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Ten mononuclear rare earth complexes of formula [La(btfa)3(H2O)2] (1), [La(btfa)3(4,4′-Mt2bipy)] (2), [La(btfa)3(4,4′-Me2bipy)2] (3), [La(btfa)3(5,5′-Me2bipy)2] (4), [La(btfa)3(terpy)] (5), [La(btfa)3(phen)(EtOH)] (6), [La(btfa)3(4,4′-Me2bipy)(EtOH)] (7), [La(btfa)3(2-benzpy)(MeOH)] (8), [Tb(btfa)3(4,4′-Me2bipy)] (9) and (Hpy)[Eu(btfa)4] (10), where btfa = 4,4,4-trifuoro-1-phenylbutane-1,3-dionato anion, 4,4′-Mt2bipy = 4,4′-dimethoxy-2,2′-bipyridine, 4,4′-Me2bipy = 4,4′-dimethyl-2,2′-bipyridine, 5,5′-Me2bipy = 5,5′-dimethyl-2,2′-bipyridine, terpy = 2,2′:6′,2′-terpyridine, phen = 1,10-phenathroline, 2-benzpy = 2-(2-pyridyl)benzimidazole, Hpy = pyridiniumH+ cation) have been synthesized and structurally characterized. The complexes display coordination numbers (CN) eight for 1, 2, 9, 10, nine for 5, 6, 7, 8 and ten for 3 and 4. The solid-state luminescence spectra of Tb-9 and Eu-10 complexes showed the same characteristic bands predicted from the Tb(III) and Eu(III) ions. The Overall Quantum Yield measured (ϕTOT) at the excitation wavelength of 371 nm for both compounds yielded 1.04% for 9 and up to 34.56% for 10.

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“…Lanthanide coordination compounds with terpyridine and its derivatives have been known for decades, [1–19] and namely with 4′‐phenyl‐2,2′:6′,2′′‐terpyridine (ptpy) several reports were published [20–28] . Recently, we have presented two series of lanthanide coordination polymers and complexes including organic ligand sensitized 4f‐4f emission of NIR and visible emitters [28] .…”

Section: Introductionmentioning

confidence: 99%

Phosphorescence Afterglow and Thermal Properties of [ScCl₃(ptpy)] (ptpy: 4'‐phenyl‐2,2',6',2''‐terpyridine)

Sedykh

Kurth

Müller‐Buschbaum

2021

Zeitschrift anorg allge chemie

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A trivalent scandium complex with 4′‐phenyl‐2,2′:6′,2′′‐terpyridine [ScCl3(ptpy)] has been synthesized and characterized. At low temperatures, [ScCl3(ptpy)] shows a luminescence afterglow of green color in the crystalline form and of cyan color in a glass matrix, caused by phosphorescence of long triplet state emission lifetime (1.63(2) s in a glass matrix, 0.56(3) s in the crystalline form). In addition, the complex is thermally remarkably stable up to 495 °C, especially in comparison with previously reported similar lanthanide and group 3 metal chloride complexes containing ptpy.

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Synthesis and photoluminescent properties of Eu (III) complexes with fluorinated β-diketone and nitrogen heterocyclic ligands

Cited by 50 publications

References 25 publications

Enhanced luminescence of CaF₂:Er³⁺/Nd³⁺ nanoparticles coated by fluorinated β‐diketone

Enhanced luminescence of CaF₂:Er³⁺/Nd³⁺ nanoparticles coated by fluorinated β‐diketone

Diverse Coordination Numbers and Geometries in Pyridyl Adducts of Lanthanide(III) Complexes Based on β-Diketonate

Phosphorescence Afterglow and Thermal Properties of [ScCl₃(ptpy)] (ptpy: 4'‐phenyl‐2,2',6',2''‐terpyridine)

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Synthesis and photoluminescent properties of Eu (III) complexes with fluorinated β-diketone and nitrogen heterocyclic ligands

Cited by 50 publications

References 25 publications

Enhanced luminescence of CaF2:Er3+/Nd3+ nanoparticles coated by fluorinated β‐diketone

Enhanced luminescence of CaF2:Er3+/Nd3+ nanoparticles coated by fluorinated β‐diketone

Diverse Coordination Numbers and Geometries in Pyridyl Adducts of Lanthanide(III) Complexes Based on β-Diketonate

Phosphorescence Afterglow and Thermal Properties of [ScCl3(ptpy)] (ptpy: 4'‐phenyl‐2,2',6',2''‐terpyridine)

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Enhanced luminescence of CaF₂:Er³⁺/Nd³⁺ nanoparticles coated by fluorinated β‐diketone

Enhanced luminescence of CaF₂:Er³⁺/Nd³⁺ nanoparticles coated by fluorinated β‐diketone

Phosphorescence Afterglow and Thermal Properties of [ScCl₃(ptpy)] (ptpy: 4'‐phenyl‐2,2',6',2''‐terpyridine)