Vanadyl acetate

Vanadyl acetate

Names
Other names Vanadyl(IV) acetate Vanadium(IV) oxide diacetate
Identifiers
CAS Number	3473-84-5
3D model (JSmol)	Interactive image
ChemSpider	35294250
ECHA InfoCard	100.020.406
EC Number	222-445-1
PubChem CID	77024
CompTox Dashboard (EPA)	DTXSID001311115
InChI InChI=1S/2C2H4O2.O.V/c2*1-2(3)4;;/h2*1H3,(H,3,4);;
SMILES CC(=O)O.CC(=O)O.O=[V]
Properties
Chemical formula	VO(CH3COO)2
Molar mass	185.03 g/mol
Appearance	Tan solid [1]
Density	1.83 g/cm3 [1]
Melting point	214 °C (417 °F; 487 K) [2] (decomposes)
Solubility in water	Insoluble
Solubility	Insoluble in benzene, chloroform, and cyclohexane, slightly soluble in ethanol [2] [3]
Structure [1]
Crystal structure	Orthorhombic
Space group	Cmc21
Lattice constant	a = 14.07 Å, b = 6.88 Å, c = 6.93 Å
Lattice volume (V)	859.8 Å3
Coordination geometry	octahederal (vanadium)
Related compounds
Other anions	Vanadyl acetylacetonate
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Vanadyl acetate is an inorganic chemical compound with the formula VO(CH₃COO)₂, which can be simplified to VO(OAc)₂. It is a tan-colored solid, insoluble in water, that is used to produce other vanadyl acetate complexes such as with pyridine, urea, and thiourea. It also has been studied as a catalyst in the acetylation of alcohols. ^[4]

Production and structure

Vanadyl acetate is produced by refluxing acetic anhydride with vanadium pentoxide at 140 °C: ^[2]

V₂O₅ + 3 (CH₃CO)₂O → 2 VO(CH₃COO)₂ + 2 CO₂ + C₂H₆

This compound has a polymeric structure consisting of repeating VO₆ octahedra. ^[1]

References

1. Curtis Weeks; Yanning Song; Masatsugu Suzuki; Natasha A. Chernova; Peter Y. Zavalij; M. Stanley Whittingham (2003). "The one dimensional chain structures of vanadyl glycolate and vanadyl acetate". Journal of Materials Chemistry. 13: 1420–1423. doi:10.1039/B208100H.
2. Frank A. Cotton (1972). "Vanadyl(IV) Acetate, VO(CH ₃ CO ₂ ) ₂". Vanadyl(IV) Acetate, VO(CH3CO2)2. Inorganic Syntheses. Vol. 13. pp. 181–183. doi:10.1002/9780470132449.ch37. ISBN   978-0-470-13172-5.
3. G. M. Larin; V. T. Kalinnikov; V. V. Zelentsov; M. E. Dyatkina (1972). "EPR study of vanadyl acetate and some of its adducts". Theoretical and Experimental Chemistry. 6 (2): 174–179. doi:10.1007/BF00526632.
4. B.M. Choudary; M. Lakshmi Kantam; V. Neeraja; Tapasree Bandyopadhyay; P. Narsi Reddy (1999). "Vanadyl(IV) acetate, a new reusable catalyst for acetylation of alcohols". Journal of Molecular Catalysis A: Chemical. 140 (1): 25–29. doi:10.1016/S1381-1169(98)00214-3.