Zinc acetylacetonate is an acetylacetonate complex of zinc, with the chemical formula of Zn(C5H7O2)2. The compound is in fact a trimer, Zn3(acac)6, in which each Zn ion is coordinated by five oxygen atoms in a distorted trigonal bipyramidal structure.[5]
-acetylacetonat.svg)
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3D model (JSmol)
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| ChemSpider | |
| ECHA InfoCard | 100.034.405 |
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PubChem CID
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| Properties | |
| C10H14O4Zn | |
| Molar mass | 263.60 g·mol−1 |
| Appearance | crystals[1] |
| Density | 1.41 g·cm−3[2] |
| Melting point | 124–126 °C[1] |
| Boiling point | 129–131 °C (13 hPa)[1] |
| 6.9 g/L[1] | |
| Solubility | soluble in organic solvants[3] |
| Hazards | |
| GHS labelling:[4] | |
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| Warning | |
| H315, H319, H335 | |
| P261, P264, P264+P265, P271, P280, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P403+P233, P405, P501 | |
| Related compounds | |
Other cations
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calcium acetylacetonate barium acetylacetonate |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Preparation
editZinc acetylacetonate can be obtained by reacting zinc sulfate, acetylacetone and sodium hydroxide.[3]
Properties
editZinc acetylacetonate is a crystalline substance that is slightly soluble in water.[1] Through sublimation, monomer crystals can be obtained, which are monoclinic and have the space group C2/c (No. 15).[6] Trimeric crystals can also be obtained by sublimation, which is also monoclinic, with space group C2 (No. 5).[2] The structures of its monohydrate[7] and dihydrate[8] are also known.
Reactions
editZinc acetylacetonate hydrate has been used to prepare magnetic (Zn,Fe)Fe2O4 films,[9] zinc oxide,[10] and is also a catalyst for organic synthesis.[3]
References
edit- ^ a b c d e Sigma-Aldrich Co., product no. 8.08803.
- ^ a b Bennett, M. J.; Cotton, F. A.; Eiss, R. (1968-07-01). "The crystal and molecular structure of trimeric bis(acetylacetonato)zinc(II)". Acta Crystallographica Section B. 24 (7): 904–913. Bibcode:1968AcCrB..24..904B. doi:10.1107/S0567740868003390. ISSN 0567-7408.
- ^ a b c Barta, Nancy S.; Stille, John R. (2001-04-15), "Bis(acetylacetonato)zinc(II)", in John Wiley & Sons, Ltd (ed.), Encyclopedia of Reagents for Organic Synthesis, Chichester, UK: John Wiley & Sons, Ltd, pp. rb097, doi:10.1002/047084289x.rb097, ISBN 978-0-471-93623-7, retrieved 2023-03-06
- ^ "zinc;(Z)-4-oxopent-2-en-2-olate". pubchem.ncbi.nlm.nih.gov.
- ^ Greenwood, Norman N.; Earnshaw, Alan (1997). Chemistry of the Elements (2nd ed.). Butterworth-Heinemann. ISBN 978-0-08-037941-8.
- ^ W. Clegg (2016). Private Communication. Cambridge Crystallographic Data Centre. doi:10.5517/ccdc.csd.cc1mcf4k.
- ^ H. Montgomery, E. C. Lingafelter (1963). "The crystal structure of monoaquobisacetylacetonatozinc". Acta Crystallographica. 16 (8): 748–752. Bibcode:1963AcCry..16..748M. doi:10.1107/S0365110X6300195X.
- ^ P. Harbach, H.-W. Lerner, M. Bolte (2003). "Diaquadiacetylacetonatozinc(II)". Acta Crystallographica Section E. 59 (9): m724–m725. Bibcode:2003AcCrE..59M.724H. doi:10.1107/S1600536803015848.
{{cite journal}}: CS1 maint: multiple names: authors list (link) - ^ Sigma-Aldrich Co., product no. 480991.
- ^ Inubushi, Yoichi; Takami, Ryoji; Iwasaki, Mitsunobu; Tada, Hiroaki; Ito, Seishiro (April 1998). "Mechanism of Formation of Nanocrystalline ZnO Particles through the Reaction of [Zn(acac)2] with NaOH in EtOH". Journal of Colloid and Interface Science. 200 (2): 220–227. Bibcode:1998JCIS..200..220I. doi:10.1006/jcis.1997.5354.