Silver_fluoroborate
Silver tetrafluoroborate
Chemical compound
Silver tetrafluoroborate is an inorganic compound with the chemical formula AgBF4. It is a white solid that dissolves in polar organic solvents as well as water. In its solid state, the Ag+ centers are bound to fluoride.[2]
| Names | |
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| IUPAC name
Silver tetrafluoridoborate(1–) | |
| Other names
Borate(1-), tetrafluoro-, silver(1+) Argentous tetrafluoroborate | |
| Identifiers | |
3D model (JSmol) |
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| ECHA InfoCard | 100.034.491  |
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PubChem CID |
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| RTECS number |
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CompTox Dashboard (EPA) |
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| Properties | |
| AgBF4 | |
| Molar mass | 194.673 g/mol |
| Appearance | Off-white powder |
| Odor | almost odorless |
| Density | 4.16 g/cm3 |
| Melting point | 71.5 °C (160.7 °F; 344.6 K) (monohydrate) |
| soluble | |
| Hazards | |
| GHS labelling:[1] | |
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| Danger | |
| H314 | |
| P260, P264, P280, P301+P330+P331, P303+P361+P353, P304+P340, P305+P351+P338, P310, P321, P363, P405, P501 | |
| NFPA 704 (fire diamond) | |
| Safety data sheet (SDS) | External MSDS |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Silver tetrafluoroborate is prepared by the reaction between boron trifluoride and silver oxide in the presence of benzene.
In the inorganic and organometallic chemistry laboratory, silver tetrafluoroborate, sometimes referred to "silver BF-4", is a useful reagent. In dichloromethane, silver tetrafluoroborate is a moderately strong oxidant.[3] Similar to silver hexafluorophosphate, it is commonly used to replace halide anions or ligands with the weakly coordinating tetrafluoroborate anions. The abstraction of the halide is driven by the precipitation of the appropriate silver halide.
- "Silver tetrafluoroborate". pubchem.ncbi.nlm.nih.gov. Retrieved 15 December 2021.
- Evgeny Goreshnik, Zoran Mazej, "X-ray single crystal structure and vibrational spectra of AgBF4" Solid State Sciences 2005, Volume 7, pp. 1225–1229. doi:10.1016/j.solidstatesciences.2005.06.007
- N. G. Connelly, W. E. Geiger (1996). "Chemical Redox Agents for Organometallic Chemistry". Chemical Reviews. 96 (2): 877–910. doi:10.1021/cr940053x. PMID 11848774.
