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Vanadyl acetate

From Wikipedia, the free encyclopedia
Vanadyl acetate
Names
Other names
  • Vanadyl(IV) acetate
  • Vanadium(IV) oxide diacetate
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.020.406 Edit this at Wikidata
EC Number
  • 222-445-1
  • InChI=1S/2C2H4O2.O.V/c2*1-2(3)4;;/h2*1H3,(H,3,4);;
  • CC(=O)O.CC(=O)O.O=[V]
Properties
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)
Insoluble
Solubility Insoluble[2][3]
Structure[1]
Orthorhombic
Cmc21
a = 14.07 Å, b = 6.88 Å, c = 6.93 Å
859.8 Å3
octahedral (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).

Vanadyl acetate is the coordination polymer with the empirical formula VO(CH3COO)2, which can be simplified to VO(OAc)2 and giving rise to a systematic name of vanadium(IV) oxide diacetate. It is a tan solid, insoluble in most solvents.[1]

Production and structure

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Vanadyl acetate is produced by treating vanadium pentoxide with acetic anhydride. The acetic anhydride serves as the reducing agent converting the vanadium(V) to vanadium(IV); the oxidized byproduct of the reaction has not been identified.[1][2]

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

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

It forms adducts with pyridine, urea, and thiourea. It also has been reported to catalyzes the acetylation of alcohols.[4]

References

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  1. 1 2 3 4 5 6 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 Vandal acetate". Journal of Materials Chemistry. 13: 1420–1423. doi:10.1039/B208100H.
  2. 1 2 3 Paul, Ram Chand; Bhatia, Saroj; Kumar, Ashok (1972). "Vanadyl(IV) Acetate, VO(CH3CO2)2". Inorganic Syntheses. 13: 181. doi:10.1002/9780470132449.ch37.
  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.