| Ferrocenium tetrafluoroborate | |
|---|---|
|
Other names
dicyclopentadienyl iron tetrafluoroborate |
|
| Identifiers | |
| CAS number | 1282-37-7 |
| Properties | |
| Molecular formula | C10H10BFeF4 |
| Molar mass | 272.84 g/mol |
| Appearance | dark blue powder |
| Melting point |
178 °C (decomp.) |
| Solubility in water | Unstable in water, soluble in MeCN |
| Hazards | |
| MSDS | External MSDS |
| EU classification | C |
| Related compounds | |
| Related compounds | cobaltocenium fluoroborate, ferrocene |
| (verify) (what is: /?) Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) |
|
| Infobox references | |
Ferrocenium tetrafluoroborate is an organometallic compound with the formula [Fe(C5H5)2]BF4. This salt is composed of the cation [Fe(C5H5)2]+ and the tetrafluoroborate anion (BF4-). The related hexafluorophosphate is also a popular reagent with similar properties. The cation is often abbreviated Fc+. The salt is deep blue in color and paramagnetic.
Ferrocenium salts are sometimes used as one-electron oxidizing agents. The product of the oxidation, ferrocene, is inert and readily separated from ionic products. The ferrocene/ferrocenium couple is often used as a reference in electrochemistry. In acetonitrile solution that is 0.1 M in NBu4PF6, the Fc+/0 couple is +0.641 V vs the normal hydrogen electrode.[1]
Commercially available, this compound may be prepared by oxidizing ferrocene with nitrosyl tetrafluoroborate.[2]