Vanadyl ion
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Not to be confused with the pervanadyl ion, with the formula VO+
2.
2.
The vanadyl or oxovanadium(IV) cation, VO2+,[1] is a 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] The description of the bonding in the vanadyl ion was central to the development of modern ligand-field theory.[3]
![Thumb image](http://upload.wikimedia.org/wikipedia/commons/thumb/2/29/Vo%28acac%292.png/320px-Vo%28acac%292.png)
![Thumb image](http://upload.wikimedia.org/wikipedia/commons/thumb/1/11/Cavansite.jpg/220px-Cavansite.jpg)