Holmium acetylacetonate

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Holmium acetylacetonate

Names
Other names

Holmium(III) acetylacetonate

Identifiers

CAS Number

* 14589-33-4 Y

3D model (JSmol)

* Interactive image

InChI

* InChI=1S/3C5H7O2.Ho/c3*1-4(6)3-5(2)7;/h3*3H,1-2H3;/q3*-1;+3

Key: UEKRGRZSLATUQV-UHFFFAOYSA-N

SMILES

* CC(=O)[CH-]C(=O)C.CC(=O)[CH-]C(=O)C.CC(=O)[CH-]C(=O)C.[Ho+3]

Properties

Chemical formula

| C15H21HoO6
Molar mass | 462.257 g·mol−1
Melting point | 101 °C (374 K)[1]

Solubility in water

| Insoluble[2]

Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Infobox references

Holmium acetylacetonate is a coordination complex, with the chemical formula of Ho(C5H7O2)3 or Ho(acac)3. It can be obtained via the reaction between metallic holmium[3] or holmium(III) hydride[1] with acetylacetone, or via the reaction between holmium(III) chloride and ammonium acetylacetonate.[4] Its anhydrous form is stable in a dry atmosphere but forms a hydrate in humid air.[5]

Like related lanthanide acetylacetonates, the complex is usually isolated with additional ligands. The dihydrate, which has been characterized by X-ray crystallography, features 8-coordinate Ho(III).[6] No crystallographic evidence has been reported for anhydrous derivatives.

## References

1. ↑ 1.0 1.1 Janice M. Koehler, William G. Bos (1967-12-01). "A novel synthesis of some anhydrous rare earth acetylacetonates" (in en). Inorganic and Nuclear Chemistry Letters 3 (12): 545–548. doi:10.1016/0020-1650(67)80023-0. https://linkinghub.elsevier.com/retrieve/pii/0020165067800230. Retrieved 2021-09-20.
2. ↑ "Holmium Acetylacetonate" (in en). https://www.americanelements.com/holmium-acetylacetonate-14589-33-4.
3. ↑ J.R. Blackborow, C.R. Eady, E.A.Koerner Von Gustorf, A. Scrivanti, O. Wolfbeis (1976-03-01). "Chemical syntheses with metal atoms" (in en). Journal of Organometallic Chemistry 108 (3): C32–C34. doi:10.1016/S0022-328X(00)92025-4. https://linkinghub.elsevier.com/retrieve/pii/S0022328X00920254. Retrieved 2021-09-20.
4. ↑ Cite error: Invalid `<ref>` tag; no text was provided for refs named `Zeisler`
5. ↑ Trembovetskii, G. V.; Martynenko, L. I.; Murav'eva, I. A.; Spitsyn, V. Synthesis and study of volatile rare earth acetylacetonates. Doklady Akademii Nauk SSSR, 1984. 277 (6): 1411-1414. ISSN 0002-3264. In Russian.
6. ↑ Kooijman, Huub; Nijsen, Frank; Spek, Anthony L.; Schip, Fred van het (2000). "Diaquatris(pentane-2,4-dionato-O,O′)holmium(III) monohydrate and diaquatris(pentane-2,4-dionato-O,O′)holmium(III) 4-hydroxypentan-2-one solvate dihydrate". Acta Crystallographica Section C Crystal Structure Communications 56 (2): 156–158. doi:10.1107/S0108270199013566. PMID 10777870.

## External reading

* R. G. Bulgakov, S. P. Kuleshov, R. R. Vafin, A. G. Ibragimov, U. M. Dzhemilev (2008-03-01). "Reactions of lanthanide acetylacetonates with triethylaluminum" (in en). Kinetics and Catalysis 49 (2): 299–304. doi:10.1134/S0023158408020195. ISSN 0023-1584. http://link.springer.com/10.1134/S0023158408020195. Retrieved 2021-09-20.
* Kent J. Eisentraut, Robert E. Sievers (1967-08-01). "Thermogravimetric studies of metal β-diketonates" (in en). Journal of Inorganic and Nuclear Chemistry 29 (8): 1931–1936. doi:10.1016/0022-1902(67)80452-4. https://linkinghub.elsevier.com/retrieve/pii/0022190267804524. Retrieved 2021-09-20.

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Holmium compounds

* HoBr3
* HoCl3
* Ho2O3
* Ho2Ti2O7

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