Vanadium(III) acetylacetonate

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Vanadium(III) acetylacetonate
V(acac)3.png
Names
Other names
  • Vanadium tris(2,4-pentanedionate)
  • Tris(2,4-pentanedionato) vanadium
  • Vanadium acetylacetonate
  • Vanadium tris(acetylacetonate)
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.033.403 Edit this at Wikidata
EC Number
  • 236-759-1
  • InChI=1S/3C5H8O2.V/c3*1-4(6)3-5(2)7;/h3*3,6H,1-2H3;/b3*4-3-;
    Key: MFWFDRBPQDXFRC-LNTINUHCSA-N
  • CC(=CC(=O)C)O.CC(=CC(=O)C)O.CC(=CC(=O)C)O.[V]
Properties
C15H21O6V
Molar mass 348.269 g·mol−1
Appearance Brown solid
Density 1.334 g/cm3
Melting point 184 °C (363 °F; 457 K)
Hazards
GHS labelling:
GHS05: CorrosiveGHS06: ToxicGHS07: Exclamation mark
Danger
H301, H311, H315, H318, H319, H330, H335
P260, P261, P264, P270, P271, P280, P284, P301+P310, P302+P352, P304+P340, P305+P351+P338, P310, P312, P320, P321, P322, P330, P332+P313, P337+P313, P361, P362, P363, P403+P233, P405, P501
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Vanadium(III) acetylacetonate is the coordination compound with the formula V(C5H7O2)3, sometimes designated as V(acac)3. It is an orange-brown solid that is soluble in organic solvents.

Structure and synthesis[edit]

The complex has idealized D3 symmetry.[1] Like other V(III) compounds, it has a triplet ground state.

The compound is prepared by reduction of ammonium vanadate in the presence of acetylacetone.[2]

Applications and research[edit]

V(acac)3 is a common precatalyst for the production of EPDM polymers.[3]

It has also been shown to be a precursor to vanadium pentoxide nanostructures.[4]

References[edit]

  1. ^ C. A. L. Filgueiras, A. Horn, Jr., R. A. Howie, J. M. S. Skakle, J. L. Wardell (2001). "α-Form of tris(2,4-pentanedionato-O,O')vanadium(III), re-refinement against new intensity data". Acta Crystallogr. E. 57: m157–m158. doi:10.1107/S1600536801004391.{{cite journal}}: CS1 maint: uses authors parameter (link)
  2. ^ S. Dilli, E. Patsalides (1976). "A convenient new Method for the preparation of vanadium(III) β-diketonates". Australian Journal of Chemistry. 29 (11): 2389–2393. doi:10.1071/CH9762389.{{cite journal}}: CS1 maint: uses authors parameter (link)
  3. ^ By Ma, Yinlin; Reardon, Damien; Gambarotta, Sandro; Yap, Glenn; Zahalka, Hayder; Lemay, Catherine (1999). "Vanadium-Catalyzed Ethylene-Propylene Copolymerization: The Question of the Metal Oxidation State in Ziegler-Natta Polymerization Promoted by (β-diketonate)3V". Organometallics. 18: 2773–2781. doi:10.1021/om9808763.{{cite journal}}: CS1 maint: uses authors parameter (link)
  4. ^ Cao, An-Min; Hu, Jin-Song; Liang, Han-Pu; Wan, Li-Jun (2005). "Self-assembled vanadium pentoxide (V2O5) hollow microspheres from nanorods and their application in lithium-ion batteries". Angewandte Chemie International Edition. 44 (28): 4391–4395. doi:10.1002/anie.200500946. PMID 15942965.{{cite journal}}: CS1 maint: uses authors parameter (link)