Europium acetylacetonate

Europium acetylacetonate^[1]
Names
	IUPAC name Tris(acetylacetonato)europium(III)
	Systematic IUPAC name Tris[(Z)-4-oxopent-2-en-2-olato-κ2O,O′]europium(III)
Identifiers
CAS Number	14284-86-7 anhydrous; 52081-76-2 dihydrate;
3D model (JSmol)	Interactive image;
ChemSpider	76060;
EC Number	238-185-7;
PubChem CID	14455607;
UNII	X5US2R5ZCX ;
	InChI InChI=1S/3C5H7O2.Eu/c31-4(6)3-5(2)7;/h33H,1-2H3;/q3*-1;+3 Key: YMTKZYSHNNXTIJ-UHFFFAOYSA-N;
	SMILES CC(=CC(=O)C)[O-].CC(=CC(=O)C)[O-].CC(=CC(=O)C)[O-].[Eu+3];
Properties
Chemical formula	C15H21EuO6
Molar mass	449.291 g·mol−1
Melting point	187 to 189 °C (369 to 372 °F; 460 to 462 K) (decomposes)
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
	Infobox references

Europium acetylacetonate is a coordination complex with formula Eu(C₅H₇O₂)₃. Although this anhydrous acetylacetonate complex is widely discussed,^[2] some sources suggest that it is really the dihydrate Eu(C₅H₇O₂)₃(H₂O)₂.^[3]^[4]

Upon attempted dehydration by heating under vacuum, the dihydrate converts to the oxo-cluster Eu
4O(C
5H
7O
2)
10. This behavior is also observed for gadolinium acetylacetonate, yttrium acetylacetonate, lanthanum acetylacetonate, and erbium acetylacetonate.^[5]

The electronic structure of the Eu³⁺ core gives the complex an unusual charge-transfer band absent in other lanthanide acetylacetonates.^[6] The photoluminescent emission lines occur near 465 (blue), 525 (green), and 579 nm (yellow), and are unusually sharp, especially the yellow doublet.^[7] Doping a blend of polyacrylate and polycarbonate with europium acetylacetonate enhances photoluminescence over a broad range of ultraviolet wavelengths.^[8] EuFOD is a substituted derivative.

References

↑ Europium acetylacetonate at American Elements
↑ Ilmi, Rashid; Kansız, Sevgi; Dege, Necmi; Khan, Muhammad S. (2019). "Synthesis, structure, Hirshfeld surface analysis and photophysical studies of red emitting europium acetylacetonate complex incorporating a phenanthroline derivative". Journal of Photochemistry and Photobiology A: Chemistry 377: 268–281. doi:10.1016/j.jphotochem.2019.03.036. Bibcode: 2019JPPA..377..268I.
↑ Okawara, Toru; Ishihama, Kohei; Takehara, Kenji (2014). "Redetermination of diaquatris(4-oxopent-2-en-2-olato-κ² O , O ′)lanthanum(III)". Acta Crystallographica Section E 70 (7): m258–m259. doi:10.1107/S1600536814013336. PMID 25161523.
↑ Phillips, Theodore; Sands, Donald E.; Wagner, William F. (1968). "Crystal and Molecular Structure of Diaquotris(acetylacetonato)lanthanum(III)". Inorganic Chemistry 7 (11): 2295–2299. doi:10.1021/ic50069a024.
↑ Tamang, Sem Raj; Singh, Arpita; Bedi, Deepika; Bazkiaei, Adineh Rezaei; Warner, Audrey A.; Glogau, Keeley; McDonald, Corey; Unruh, Daniel K. et al. (2020). "Polynuclear Lanthanide–Diketonato Clusters for the Catalytic Hydroboration of Carboxamides and Esters". Nat. Catal. 3 (2): 154–162. doi:10.1038/s41929-019-0405-5.
↑ Napier, G.D.R.; Neilson, J.D.; Shepherd, T.M. (March 1975). "Charge-transfer excited state in tris(acetylacetonato) europium(III)". Chemical Physics Letters 31 (2): 328–330. doi:10.1016/0009-2614(75)85032-9. Bibcode: 1975CPL....31..328N.
↑ Freed, Simon; Weissman, S. I.; Fortess, Fred E. (April 1941). "The Absorption Spectra of Ions of Europium and the Electric Fields within Some Coördination Compounds". Journal of the American Chemical Society 63 (4): 1079–1085. doi:10.1021/ja01849a053. Bibcode: 1941JAChS..63.1079F. https://pubs.acs.org/doi/pdf/10.1021/ja01849a053.
↑ Bonzanini, R.; Dias, D.T.; Girotto, E.M.; Muniz, E.C.; Baesso, M.L.; Caiut, J.M.A.; Messaddeq, Y.; Ribeiro, S.J.L. et al. (March 2006). "Spectroscopic properties of polycarbonate and poly(methyl methacrylate) blends doped with europium (III) acetylacetonate" (in en). Journal of Luminescence 117 (1): 61–67. doi:10.1016/j.jlumin.2005.04.010. Bibcode: 2006JLum..117...61B.

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Original source: https://en.wikipedia.org/wiki/Europium acetylacetonate. Read more

[americanelements-1] Europium acetylacetonate at American Elements

[2] Ilmi, Rashid; Kansız, Sevgi; Dege, Necmi; Khan, Muhammad S. (2019). "Synthesis, structure, Hirshfeld surface analysis and photophysical studies of red emitting europium acetylacetonate complex incorporating a phenanthroline derivative". Journal of Photochemistry and Photobiology A: Chemistry 377: 268–281. doi:10.1016/j.jphotochem.2019.03.036. Bibcode: 2019JPPA..377..268I.

[3] Okawara, Toru; Ishihama, Kohei; Takehara, Kenji (2014). "Redetermination of diaquatris(4-oxopent-2-en-2-olato-κ² O , O ′)lanthanum(III)". Acta Crystallographica Section E 70 (7): m258–m259. doi:10.1107/S1600536814013336. PMID 25161523.

[4] Phillips, Theodore; Sands, Donald E.; Wagner, William F. (1968). "Crystal and Molecular Structure of Diaquotris(acetylacetonato)lanthanum(III)". Inorganic Chemistry 7 (11): 2295–2299. doi:10.1021/ic50069a024.

[5] Tamang, Sem Raj; Singh, Arpita; Bedi, Deepika; Bazkiaei, Adineh Rezaei; Warner, Audrey A.; Glogau, Keeley; McDonald, Corey; Unruh, Daniel K. et al. (2020). "Polynuclear Lanthanide–Diketonato Clusters for the Catalytic Hydroboration of Carboxamides and Esters". Nat. Catal. 3 (2): 154–162. doi:10.1038/s41929-019-0405-5.

[spectrum-6] Napier, G.D.R.; Neilson, J.D.; Shepherd, T.M. (March 1975). "Charge-transfer excited state in tris(acetylacetonato) europium(III)". Chemical Physics Letters 31 (2): 328–330. doi:10.1016/0009-2614(75)85032-9. Bibcode: 1975CPL....31..328N.

[7] Freed, Simon; Weissman, S. I.; Fortess, Fred E. (April 1941). "The Absorption Spectra of Ions of Europium and the Electric Fields within Some Coördination Compounds". Journal of the American Chemical Society 63 (4): 1079–1085. doi:10.1021/ja01849a053. Bibcode: 1941JAChS..63.1079F. https://pubs.acs.org/doi/pdf/10.1021/ja01849a053.

[8] Bonzanini, R.; Dias, D.T.; Girotto, E.M.; Muniz, E.C.; Baesso, M.L.; Caiut, J.M.A.; Messaddeq, Y.; Ribeiro, S.J.L. et al. (March 2006). "Spectroscopic properties of polycarbonate and poly(methyl methacrylate) blends doped with europium (III) acetylacetonate" (in en). Journal of Luminescence 117 (1): 61–67. doi:10.1016/j.jlumin.2005.04.010. Bibcode: 2006JLum..117...61B.

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Europium acetylacetonate

Topic: Chemistry

References