Lanthanum acetylacetonate
Identifiers
3D model (JSmol)
ChemSpider
EC Number
  • 238-187-8
  • InChI=1S/3C5H7O2.La/c3*1-4(6)3-5(2)7;/h3*3H,1-2H3;/q3*-1;+3
    Key: UUYNRMJIFVOQCR-UHFFFAOYSA-N
  • CC(=O)[CH-]C(=O)C.CC(=O)[CH-]C(=O)C.CC(=O)[CH-]C(=O)C.[La+3]
Properties
C15H21LaO6
Molar mass 436.232 g·mol−1
Hazards
GHS labelling:[1]
GHS07: Exclamation mark
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
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Lanthanum acetylacetonate usually refers to the coordination complex with the formula {La(C5H7O2)3(H2O)2. This species is the dihydrate of the hypothetical anhydrous acetylacetonate complex with the formula {La(C5H7O2)3.[2]

The instability constants (logYn) are 3.65, 5.13 and 6.12 (corresponding to n=1, 2, 3) have been reported for "La(acac)3".[3] It can be prepared by the reaction of lanthanum alkoxide and acetylacetone.[4] Its tetrahydrate decomposes into monohydrate at 110 °C, obtains the anhydrous form at 150 °C, undergoes La(CH3COO)(acac)2 and La(CH3COO)2(acac), and at 180~285 °C lanthanum acetate is produced.[5] It can be used to prepare NaLaS2, La2Zr2O7 and other materials.[6][7]

References

  1. ^ "Lanthanum(3+);pentane-2,4-dione". pubchem.ncbi.nlm.nih.gov.
  2. ^ . doi:10.1107/S1600536814013336. ((cite journal)): Cite journal requires |journal= (help); Missing or empty |title= (help)
  3. ^ N.K. Dutt, P. Banyopadhyay (1964-05-01). "Chemistry of the lanthanons—XIII". Journal of Inorganic and Nuclear Chemistry. 26 (5): 729–736. doi:10.1016/0022-1902(64)80316-X. Archived from the original on 2018-06-24. Retrieved 2021-09-20.
  4. ^ Gavrilenko, V. V.; Chekulaeva, L. A.; Savitskaya, I. A.; Garbuzova, I. A. Synthesis of yttrium, lanthanum, neodymium, praseodymium and lutetium alkoxides and acetylacetonates(in Russian). Izvestiya Akademi Nauk, Seriya Khimicheskaya, 1992. 11: 2490-2493. ISSN 1026-3500.
  5. ^ Gamal A.M. Hussein, Hamdy M. Ismail (1995-08-01). "Characterization of lanthanum oxide formed as a final decomposition product of lanthanum acetylacetonate: thermoanalytical, spectroscopic and microscopic studies". Powder Technology. 84 (2): 185–190. doi:10.1016/0032-5910(95)02984-A. Archived from the original on 2018-06-03. Retrieved 2021-09-20.
  6. ^ Yi Ding, Jun Gu, Tao Zhang, An-Xiang Yin, Lu Yang, Ya-Wen Zhang, Chun-Hua Yan (2012-02-15). "Chemoaffinity-Mediated Synthesis of NaRES 2 -Based Nanocrystals as Versatile Nano-Building Blocks and Durable Nano-Pigments". Journal of the American Chemical Society. 134 (6): 3255–3264. doi:10.1021/ja211103b. ISSN 0002-7863. PMID 22242812. Archived from the original on 2019-04-20. Retrieved 2021-09-20.((cite journal)): CS1 maint: multiple names: authors list (link)
  7. ^ Yang Wang, Rishi Kumar, Justin Roller, Radenka Maric (2017-06-01). "Synthesis and Characterization of Nano-crystalline La2Zr2O7 Film by Reactive Spray Deposition Technology for Application in Thermal Barrier Coatings". MRS Advances. 2 (28): 1519–1525. doi:10.1557/adv.2017.154. ISSN 2059-8521. S2CID 136079675. Retrieved 2021-09-20.((cite journal)): CS1 maint: multiple names: authors list (link)
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