Chemical compound

Vanadium(II) oxide is the inorganic compound with the idealized formula VO. It is one of the several binary vanadium oxides. It adopts a distorted NaCl structure and contains weak V−V metal to metal bonds. VO is a semiconductor owing to delocalisation of electrons in the t2g orbitals. VO is a non-stoichiometric compound, its composition varying from VO0.8 to VO1.3.[2]

Diatomic VO is one of the molecules found in the spectrum of relatively cool M-type stars.[3]


  1. ^ a b c R. Robie, B. Hemingway, and J. Fisher, “Thermodynamic Properties of Minerals and Related Substances at 298.15K and 1bar Pressure and at Higher Temperatures,” US Geol. Surv., vol. 1452, 1978.
  2. ^ Greenwood, Norman N.; Earnshaw, Alan (1997). Chemistry of the Elements (2nd ed.). Butterworth-Heinemann. p. 982. ISBN 978-0-08-037941-8.
  3. ^ Tsuji, T. (1986). "Molecules in Stars". Annu. Rev. Astron. Astrophys. 24: 94. Bibcode:1986ARA&A..24...89T. doi:10.1146/annurev.aa.24.090186.000513.