3(H2O)2.svg.png.webp) | |
| Names | |
|---|---|
| Other names
Holmium(III) acetylacetonate | |
| Identifiers | |
3D model (JSmol) |
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| |
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| Properties | |
| C15H21HoO6 | |
| Molar mass | 462.257 g·mol−1 |
| Appearance | milky white solid[1][2] |
| Melting point | 101 °C (374 K)[1] |
| Insoluble[3] | |
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[4] or holmium(III) hydride[1] with acetylacetone, or via the reaction between holmium(III) chloride and ammonium acetylacetonate.[2] 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 2 3 Janice M. Koehler, William G. Bos (1967-12-01). "A novel synthesis of some anhydrous rare earth acetylacetonates". Inorganic and Nuclear Chemistry Letters. 3 (12): 545–548. doi:10.1016/0020-1650(67)80023-0. Retrieved 2021-09-20.
- 1 2 S. K. Zeisler, K. Weber (1998-01-01). "Szilard-Chalmers effect in holmium complexes". Journal of Radioanalytical and Nuclear Chemistry. 227 (1–2): 105–109. doi:10.1007/BF02386438. ISSN 0236-5731. S2CID 96372922. Retrieved 2021-09-20.
- ↑ "Holmium Acetylacetonate". American Elements. Retrieved 2022-08-30.
- ↑ J.R. Blackborow, C.R. Eady, E.A.Koerner Von Gustorf, A. Scrivanti, O. Wolfbeis (1976-03-01). "Chemical syntheses with metal atoms". Journal of Organometallic Chemistry. 108 (3): C32–C34. doi:10.1016/S0022-328X(00)92025-4. Archived from the original on 2018-06-26. Retrieved 2021-09-20.
{{cite journal}}: CS1 maint: multiple names: authors list (link) - ↑ 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.
- ↑ 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". Kinetics and Catalysis. 49 (2): 299–304. doi:10.1134/S0023158408020195. ISSN 0023-1584. S2CID 97171472. Retrieved 2021-09-20.
{{cite journal}}: CS1 maint: multiple names: authors list (link) - Kent J. Eisentraut, Robert E. Sievers (1967-08-01). "Thermogravimetric studies of metal β-diketonates". Journal of Inorganic and Nuclear Chemistry. 29 (8): 1931–1936. doi:10.1016/0022-1902(67)80452-4. Archived from the original on 2018-06-12. Retrieved 2021-09-20.
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