Nitronium tetrafluoroborate is an inorganic compound with formula NO2BF4. It is a salt of nitronium cation and tetrafluoroborate anion.[1] It is a colorless crystalline solid, which reacts with water to form the corrosive acids HF and HNO3. As such, it must be handled under water-free conditions. It is sparsely soluble in many organic solvents.
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| Names | |
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| Other names
nitronium fluoroborate, NO
2BF 4 | |
| Identifiers | |
3D model (JSmol)
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| ChemSpider | |
| ECHA InfoCard | 100.034.107 |
| EC Number |
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PubChem CID
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CompTox Dashboard (EPA)
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| Properties | |
| BNO2F4 | |
| Molar mass | 132.81 |
| Hazards | |
| GHS labelling: | |
  
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| Danger | |
| H314, H317, H334 | |
| P260, P261, P264, P272, P280, P285, P301 P330 P331, P302 P352, P303 P361 P353, P304 P340, P304 P341, P305 P351 P338, P310, P321, P333 P313, P342 P311, P363, P405, P501 | |
| Safety data sheet (SDS) | [1] |
| Related compounds | |
Other cations
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Nitrosonium tetrafluoroborate |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Preparation
editNitronium tetrafluoroborate can be prepared by adding a mixture of anhydrous hydrogen fluoride and boron trifluoride to a nitromethane solution of nitric acid or dinitrogen pentoxide.[2]
Applications
editNitronium tetrafluoroborate is used in organic synthesis as an electrophilic nitrating agent and a mild oxidant.[3]
References
edit- ^ Krossing, Ingo; Raabe, Ines; Birtalan, Esther (2007-01-12). "Nitronium tetrafluoroborate". Acta Crystallographica Section E Structure Reports Online. 63 (2): i43 – i44. doi:10.1107/S1600536807000207. ISSN 1600-5368.i43 - i44&rft.date=2007-01-12&rft_id=info:doi/10.1107/S1600536807000207&rft.issn=1600-5368&rft.aulast=Krossing&rft.aufirst=Ingo&rft.au=Raabe, Ines&rft.au=Birtalan, Esther&rft_id=https://scripts.iucr.org/cgi-bin/paper?S1600536807000207&rfr_id=info:sid/en.wikipedia.org:Nitronium tetrafluoroborate" class="Z3988">
- ^ Kenneth Schofield (1980). Aromatic nitration. CUP Archive. p. 88. ISBN 0-521-23362-3.
- ^ Olah, George A.; Prakash, G. K. Surya; Wang, Qi; Li, Xing-ya (2001-04-15), John Wiley & Sons, Ltd (ed.), "Nitronium Tetrafluoroborate", Encyclopedia of Reagents for Organic Synthesis, Chichester, UK: John Wiley & Sons, Ltd, doi:10.1002/047084289x.rn043, ISBN 978-0-471-93623-7, retrieved 2024-11-27
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