Vanadium(III) acetylacetonate

Not to be confused with vanadyl acetylacetonate.

Vanadium(III) acetylacetonate

Names
IUPAC name Tris(acetylacetonato)vanadium(III)
Systematic IUPAC name Tris[(Z)-4-oxopent-2-en-2-olato-κ2O,O′]vanadium(III)
Other names Vanadium tris(2,4-pentanedionate) Tris(2,4-pentanedionato) vanadium Vanadium acetylacetonate Vanadium tris(acetylacetonate)
Identifiers
CAS Number	13476-99-8  Y
3D model (JSmol)	Interactive image
ChemSpider	22199456
ECHA InfoCard	100.033.403
EC Number	236-759-1
PubChem CID	5377225
InChI InChI=1S/3C5H8O2.V/c3*1-4(6)3-5(2)7;/h3*3,6H,1-2H3;/b3*4-3-; Key: MFWFDRBPQDXFRC-LNTINUHCSA-N
SMILES CC(=CC(=O)C)O.CC(=CC(=O)C)O.CC(=CC(=O)C)O.[V]
Properties
Chemical formula	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:
Pictograms
Signal word	Danger
Hazard statements	H301, H311, H315, H318, H319, H330, H335
Precautionary statements	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). Infobox references

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

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

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

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.
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.
3. 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.
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.