Vanadyl ion

Structure of vanadyl acetylacetonate.
Cavansite, a mineral containing the vanadyl cation that illustrates its characteristic color

The vanadyl or oxovanadium(IV) cation, VO2+,[1] is functional group that is common in the coordination chemistry of vanadium. Complexes containing this functional group are characteristically blue and paramagnetic. A triple bond is proposed to exist between the V4+ and O2- centers.[2]

Natural occurrence

Water

VO2+, often in an ionic pairing with sodium (Na+H2VO−4), is the second most abundant transition metal in seawater, with its concentration only being exceeded by molybdenum.[3] In the ocean the average concentration is 30 nM. Some mineral water springs also contain the ion in high concentrations. For example, springs near Mount Fuji often contain as much as 54 μg per liter.[3]

Vanadyl-containing Compounds

References

Greenwood, Norman N.; Earnshaw, Alan (1997). Chemistry of the Elements (2nd ed.). Butterworth-Heinemann. ISBN 0-08-037941-9.

  1. 1 2 Bertrand, Gary L.; Stapleton, George W.; Wulff, Clause A.; Hepler, Loren G. (July 1966). "Thermochemistry of Aqueous Pervanadyl and Vanadyl Ions". Inorg. Chem. 5 (7): 1283–1284. doi:10.1021/ic50041a048.
  2. ↑ Gray, H. B.; Winkler, J. R. (2018). "Living with Oxygen". Accounts of Chemical Research. 51: 1850–1857. doi:10.1021/acs.accounts.8b00245.
  3. 1 2 Rehder, Dieter (2008). Bioinorganic Vanadium Chemistry (1st ed.). Hamburg, Germany: John Wiley & Sons, Ltd. pp. 5 & 9-10. doi:10.1002/9780470994429. ISBN 9780470065099.
  4. ↑ Satyanarayan, Pal; Kasiraman, Rinku Radhika (July 2001). "Mononuclear Pervanadyl (VO+
    2    ) Complexes with Tridentate Schiff Bases: Self-assembling via C–H…oxo and π-π Interactions"    . Zeitschrift für anorganische und allgemeine Chemie. 627 (7): 1631–1637. doi:10.1002/1521-3749(200107)627:7<1631::AID-ZAAC1631>3.0.CO;2-H. Retrieved 26 September 2014.
  5. ↑ Varetti, E.L.; Brandán, S.A.; Ben Altabef, A. (April 1995). "Vibrational and electronic spectra of vanadyl nitrate, VO(NO3)3". Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy. 51 (4): 669–675. Bibcode:1995AcSpA..51..669B. doi:10.1016/0584-8539(94)00154-4. Retrieved 26 September 2014.


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