Gadolinium acetylacetonate

Last updated
Gadolinium acetylacetonate
Gd(acac)3(H2O)2.svg
Names
IUPAC name
gadolinium(3+);4-oxopent-2-en-2-olate
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.034.699 OOjs UI icon edit-ltr-progressive.svg
EC Number
  • 238-186-2
PubChem CID
UNII
  • InChI=1S/3C5H7O2.Gd/c3*1-4(6)3-5(2)7;/h3*3H,1-2H3;/q3*-1;+3
    Key: PJCXQIZIMGZZIT-UHFFFAOYSA-N
  • CC(=O)[CH-]C(=O)C.CC(=O)[CH-]C(=O)C.CC(=O)[CH-]C(=O)C.[Gd+3]
Properties
C15H21GdO6
Molar mass 454.58 g·mol−1
AppearanceOff-white
Hazards
GHS labelling: [1]
GHS-pictogram-exclam.svg
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).

Gadolinium acetylacetonate is a coordination compound with the formula Gd(C5H7O2)3. This anhydrous acetylacetonate complex is widely discussed but unlikely to exist per se. The 8-coordinated dihydrate Gd(C5H7O2)3(H2O)2 is a more plausible formula based on the behavior of other lanthanide complexes. It has also been characterized twice by X-ray crystallography. [2] [3]

Upon heating under vacuum, the dihydrate converts to the oxo-cluster Gd4O(C5H7O2)10. This behavior is also observed for europium acetylacetonate, yttrium acetylacetonate, lanthanum acetylacetonate, and erbium acetylacetonate. [4]

Uses

Gadolinium acetylacetonate, along with cerium acetylacetonate, can be used as precursors to synthesize gadolinia-doped ceria (GDC) gel powders using the sol-gel method. [5]

References

  1. ↑ "Tris(pentane-2,4-dionato-O,O')gadolinium". pubchem.ncbi.nlm.nih.gov.
  2. ↑ Cheng, Shen; Yuguo, Fan; Guofa, Liu; Yutian, Wang; Pinzhe, Lu (1983). Gaodeng Xuexiao Huaxue Xuebao (Chem. J. Chin. Univ.(Chi). 4: 769.{{cite journal}}: Missing or empty |title= (help)
  3. ↑ Cambridge Crystallographic Data Center, number CCDC 1443363. H. Kooijman, A. L. Spek, W. Bult, F. Nijsen.
  4. ↑ Tamang, Sem Raj; Singh, Arpita; Bedi, Deepika; Bazkiaei, Adineh Rezaei; Warner, Audrey A.; Glogau, Keeley; McDonald, Corey; Unruh, Daniel K.; Findlater, Michael (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.
  5. ↑ "Synthesis of gadolinia-doped ceria gels and powders from acetylacetonate precursors"
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