Chromium hexafluoride or chromium(VI) fluoride (CrF6) is a hypothetical chemical compound between chromium and fluorine with the chemical formula CrF6. It was previously thought to be an unstable yellow solid decomposing at −100 °C,[1] but this has been shown to be a misidentification of chromium pentafluoride, CrF5.[2]
YouTube Encyclopedic
-
1/5Views:6 402 5427 269 03047 513 20236 537416
-
Making my favorite liquid carcinogen
-
This chemical really doesn't want to exist
-
This is a very heavy cube
-
SF6: Sulfur hexafluoride. Chemical reactions
-
How to Write the Formula for Chromium (VI) fluoride
Transcription
Unsuccessful attempts at synthesis
CrF6 used to be thought to be produced by exhaustive fluorination of chromium metal at 400 °C and 20 MPa of pressure, and immediate freezing out of the reaction chamber to prevent decomposition:
- Cr + 3 F2 → CrF6
However, it has been shown that chromium pentafluoride (CrF5) is formed instead:
- 2 Cr + 5 F2 → 2 CrF5
and that CrF6 has yet to be synthesized.
References
- ^ Hope, Eric G.; Levason, William.; Ogden, J. Steven (1991). "Is chromium hexafluoride octahedral? Experiment still suggests "yes!"". Inorganic Chemistry. 30 (26): 4873. doi:10.1021/ic00026a002.
- ^ Riedel, Sebastian; Kaupp, Martin (2009). "The highest oxidation states of the transition metal elements". Coordination Chemistry Reviews. 253 (5–6): 606–624. doi:10.1016/j.ccr.2008.07.014.
 | This article about a hypothetical chemical compound is a stub. You can help Wikipedia by expanding it. |
 | This inorganic compound–related article is a stub. You can help Wikipedia by expanding it. |
This page was last edited on 2 October 2023, at 02:09