| Vanadium(II) oxide | |
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Vanadium(II) oxide |
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Other names
Vanadium oxide |
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| Identifiers | |
| CAS number | 12035-98-2 |
| PubChem | 24411 |
| Properties | |
| Molecular formula | VO |
| Molar mass | 66.9409 g/mol |
| Appearance | grey solid with metallic lustre |
| Density | 5.758 g/cm3 |
| Melting point |
1789 °C |
| Boiling point |
2627 °C |
| Refractive index (nD) | 1.5763 |
| Structure | |
| Crystal structure | Halite (cubic), cF8 |
| Space group | Fm3m, No. 225 |
| Coordination geometry |
Octahedral (V2+) Octahedral (O2−) |
| Hazards | |
| EU Index | Not listed |
| Flash point | Non-flammable |
| Related compounds | |
| Other anions | Vanadium monosulfide Vanadium monoselenide Vanadium monotelluride |
| Other cations | Niobium(II) oxide Tantalum(II) oxide |
| Related vanadium oxides | Vanadium(III) oxide Vanadium(IV) oxide Vanadium(V) oxide |
| (verify) (what is: /?) Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) |
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| Infobox references | |
Vanadium(II) oxide, VO, is one of the many oxides of vanadium. VO is a long-lived, electronically neutral reagent chemical. It adopts a distorted NaCl structure and contains weak V-V metal to metal bonds. As shown by band theory, VO is a conductor of electricity due to its partially filled conduction band and delocalisation of electrons in the t2g orbitals. VO is a non-stoichiometric compound, its composition varying from VO0.8 to VO1.3[1].
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