Niobium(V) oxynitrate
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Other names
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| Identifiers | |
3D model (JSmol)
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| Properties | |
| NbO(NO3)3 | |
| Molar mass | 294.92 g/mol |
| Appearance | White solid |
| Melting point | 120 °C (248 °F; 393 K)[1] (decomposes) |
| Reacts[1] | |
| Solubility | Slightly soluble in diethyl ether, MeCN, and benzene[1] |
| Structure | |
| Tetragonal[1] | |
| Hazards | |
| GHS labelling: | |
 
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| Danger | |
| H272, H315, H319, H335 | |
| Related compounds | |
Other anions
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Niobium oxychloride |
Other cations
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Vanadyl nitrate |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Niobium(V) oxynitrate is a chemical compound with the formula NbO(NO3)3. It is a tetragonal white solid that reacts violently with water to produce niobium pentoxide:[1]
- NbO(NO3)3 + H2O → Nb2O5 + HNO3
Preparation
Niobium(V) oxynitrate is produced by the reaction of niobium pentachloride and dinitrogen pentoxide at 30 °C:[1]
- NbCl5 + 4N2O5 → NbO(NO3)3 + 5NO2Cl
Nitryl chloride is produced as a byproduct. Attempts to produce this compound by the reaction dinitrogen tetroxide and niobium pentachloride under acetonitrile resulted in the formation of the acetonitrile niobium dioxide dinitrate complex. This compound reacts with water to form niobium pentoxide and decomposes at 65 °C.[2]
References
- ^ a b c d e f B. O. Field; C. J. Hardy (1963). "Trinitratoniobium(V) Oxide, NbO(NO3)3". Proceedings of the Chemical Society: 11. doi:10.1039/PS9630000001.
- ^ K. W. Bagnall; D. Brown; P. J. Jones (1964). "Niobium(V) and tantalum(V) nitrates". Journal of the Chemical Society (451): 2396–2400. doi:10.1039/JR9640002396.