A series of bis(2-phenethyl)dithiophosphinate-based Ln(III) complexes: Synthesis, magnetic and photoluminescent properties

Bryleva, Yuliya A.; Artem’ev, Alexander V.; Glinskaya, L. A.; Komarov, V. Yu.; Bogomyakov, A. S.; Рахманова, М. И.; Ларионов, С. В.

doi:10.1016/j.ica.2020.120097

Cited by 9 publications

(5 citation statements)

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“…28 Examples include Sm(Q 2 PPh 2 ) 3 (THF) 2 , for Q = S, Se, 27 and tetra-kis (Et 4 N)[Ln(S 2 P(CH 2 CH 2 Ph) 2 ) 4 ], for Ln = Sm, Eu, and Tb. 29 There are several other mixed-ligand examples; however, there is some ambiguity confirming sensitization given that complexes such as Ln(phen)L 3 and Ln(phen)L 2 (NO 3 ) contain phenanthroline, a well-studied antenna ligand. 30 Because aromatic groups in the antenna are thought to improve the luminescence of Ln(III) complexes, we targeted the [N(QPR 2 ) 2 ] − where R = phenyl.…”

Section: ■ Introductionmentioning

confidence: 99%

“…30 Because aromatic groups in the antenna are thought to improve the luminescence of Ln(III) complexes, we targeted the [N(QPR 2 ) 2 ] − where R = phenyl. 29 In addition to divalent and trivalent europium emission, we sought to synthesize a wider series of trivalent lanthanide complexes utilizing the phenyl substituted dithio-and diselenoimidodiphosphinate ligands to probe their photophysical properties.…”

Section: ■ Introductionmentioning

confidence: 99%

“…Evidence that the soft donors are capable of sensitization can be found in other ligand classes, such as the dithiophosphinates . Examples include Sm(Q 2 PPh 2 ) 3 (THF) 2 , for Q = S, Se, and tetra-kis (Et 4 N)[Ln(S 2 P(CH 2 CH 2 Ph) 2 ) 4 ], for Ln = Sm, Eu, and Tb . There are several other mixed-ligand examples; however, there is some ambiguity confirming sensitization given that complexes such as Ln(phen)L 3 and Ln(phen)L 2 (NO 3 ) contain phenanthroline, a well-studied antenna ligand .…”

Section: Introductionmentioning

confidence: 99%

“…There are several other mixed-ligand examples; however, there is some ambiguity confirming sensitization given that complexes such as Ln(phen)L 3 and Ln(phen)L 2 (NO 3 ) contain phenanthroline, a well-studied antenna ligand . Because aromatic groups in the antenna are thought to improve the luminescence of Ln(III) complexes, we targeted the [N(QPR 2 ) 2 ] − where R = phenyl . In addition to divalent and trivalent europium emission, we sought to synthesize a wider series of trivalent lanthanide complexes utilizing the phenyl substituted dithio- and diselenoimidodiphosphinate ligands to probe their photophysical properties.…”

Section: Introductionmentioning

confidence: 99%

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Lanthanide Luminescence and Thermochromic Emission from Soft-Atom Donor Dichalcogenoimidodiphosphinate Ligands

et al. 2022

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The luminescence properties of two divalent europium complexes of the type Eu[N(SPPh2)2]2(THF)2 (1) and Eu[N(SePPh2)2]2(THF)2 (2) were investigated. The first complex, Eu[N(SPPh2)2]2(THF)2 (1), was found to be isomorphous with the reported structure of complex 2 and exhibited room temperature luminescence with thermochromic emission upon cooling. We found the complex Eu[N(SePPh2)2]2(THF)2 (2) was also thermochromic but the emission intensity was sensitive to temperature. Both room temperature and low temperature (100 K) single crystal X-ray structural investigation of 1 and 2 indicate geometric distortions of the metal coordination, which may be important for understanding the thermochromic behavior of these complexes. The trivalent europium complex Eu[N(SPPh2)2]3 (3) with the same ligand as 1 was also structurally characterized as a function of temperature and exhibited temperature-dependent luminescence intensity, with no observable emission at room temperature but intense luminescence at 77 K. Variable temperature Raman spectroscopy was used to determine the onset temperature of luminescence of Eu[N(SPPh2)2]3 (3), where the 615 nm (5D0 → 7F2 transition) peak was quenched above 130 K. The UV–visible diffuse reflectance of 3 provides evidence of an LMCT band, supporting a mechanism of thermally activated LMCT quenching of Eu(III) emitting states. A series of ten isomorphous, trivalent lanthanide complexes of type Ln[N(SPPh2)2]3 (Ln = Eu (3) Pr (4), Nd (5), Sm (6), Gd (7), Tb (8)) and Ln[N(SePPh2)2]3 (Ln = Pr (9), Nd (10, structure was previously reported), Sm (11), and Gd (12) for Q = Se) were also synthesized and structurally characterized. These complexes for Ln = Pr, Nd, Sm, and Tb exhibited room temperature luminescence. This study provides examples of temperature-dependent luminescence of both Eu2+ and Eu3+, and the use of soft-atom donor ligands to sensitize lanthanide luminescence in a range of trivalent lanthanides, spanning near IR and visible emitters.

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Section: ■ Introductionmentioning

confidence: 99%

Section: ■ Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Lanthanide Luminescence and Thermochromic Emission from Soft-Atom Donor Dichalcogenoimidodiphosphinate Ligands

et al. 2022

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“…The most intensive electron transitions in Gd 3+ occur in the ultraviolet region of 290-318 nm with the narrow-banded emission and have been applied in common lasers. Under a soft UV and visible excitation, Gd(III) is a non-emissive center and the luminescence of its coordination compounds is ligand-centered [15][16][17][18][19][20][21][22][23].…”

Section: Introductionmentioning

confidence: 99%

Crystal Structures, Thermal and Luminescent Properties of Gadolinium(III) Trans-1,4-cyclohexanedicarboxylate Metal-Organic Frameworks

et al. 2021

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Four new gadolinium(III) metal-organic frameworks containing 2,2′-bipyridyl (bpy) or 1,10-phenanthroline (phen) chelate ligands and trans-1,4-cyclohexanedicarboxylate (chdc2−) were synthesized. Their crystal structures were determined by single-crystal X-ray diffraction analysis. All four coordination frameworks are based on the binuclear carboxylate building units. In the compounds [Gd2(bpy)2(chdc)3]·H2O (1) and [Gd2(phen)2(chdc)3]·0.5DMF (2), the six-connected {Ln2(L)2(OOCR)6} blocks form a 3D network with the primitive cubic (pcu) topology. In the compounds [Gd2(NO3)2(phen)2(chdc)2]·2DMF (3) and [Gd2Cl2(phen)2(chdc)2]·0.3DMF·2.2dioxane (4), the four-connected {Ln2(L)2(X)2OOCR)4} units (where X = NO3− for 3 or Cl− for 4) form a 2D square-grid (sql) network. The solid-state luminescent properties were investigated for the synthesized frameworks. Bpy-containing compound 1 shows no luminescence, possibly due to the paramagnetic quenching by Gd3+ cation. In contrast, the phenathroline-containing MOFs 2–4 possess yellow emission under visible excitation (λex = 460 nm) with the tuning of the characteristic wavelength by the coordination environment of the metal center.

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Multi-functional organosamarium complexes, photometric properties, applications, and energy transfer process: a review

Khatkar,

Chauhan

2024

J Mater Sci

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A series of bis(2-phenethyl)dithiophosphinate-based Ln(III) complexes: Synthesis, magnetic and photoluminescent properties

Cited by 9 publications

References 43 publications

Lanthanide Luminescence and Thermochromic Emission from Soft-Atom Donor Dichalcogenoimidodiphosphinate Ligands

Lanthanide Luminescence and Thermochromic Emission from Soft-Atom Donor Dichalcogenoimidodiphosphinate Ligands

Crystal Structures, Thermal and Luminescent Properties of Gadolinium(III) Trans-1,4-cyclohexanedicarboxylate Metal-Organic Frameworks

Multi-functional organosamarium complexes, photometric properties, applications, and energy transfer process: a review

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