Vanadium(II) oxide is the
inorganic compound with the idealized formula VO. It is one of the several binary
vanadium oxide Vanadium oxide may refer to:
* Vanadium(II) oxide (vanadium monoxide), VO
* Vanadium(III) oxide (vanadium sesquioxide ''or'' trioxide), V2O3
* Vanadium(IV) oxide (vanadium dioxide), VO2
* Vanadium(V) oxide (vanadium pentoxide), V2O5
* Vanadium(VI ...
s. It adopts a distorted
NaCl structure
In crystallography, the cubic (or isometric) crystal system is a crystal system where the unit cell is in the shape of a cube. This is one of the most common and simplest shapes found in crystals and minerals.
There are three main varieties o ...
and contains weak V−V metal to metal bonds. VO is a
semiconductor
A semiconductor is a material which has an electrical conductivity value falling between that of a conductor, such as copper, and an insulator, such as glass. Its resistivity falls as its temperature rises; metals behave in the opposite way. ...
owing to delocalisation of electrons in the t
2g orbitals. VO is a
non-stoichiometric compound
In chemistry, non-stoichiometric compounds are chemical compounds, almost always solid inorganic compounds, having elemental composition whose proportions cannot be represented by a ratio of small natural numbers (i.e. an empirical formula); m ...
, its composition varying from VO
0.8 to VO
1.3.
Diatomic VO is one of the molecules found in the spectrum of relatively cool M-type stars.
References
Vanadium(II) compounds
Non-stoichiometric compounds
Transition metal oxides
Rock salt crystal structure
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