Chromium hexafluorideorchromium(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]
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:
However, it has been shown that chromium pentafluoride (CrF5) is formed instead:
and that CrF6 has yet to be synthesized.
Binary hexafluorides
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Known binary hexafluorides |
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Predicted binary hexafluorides |
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Chromium(0) |
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Chromium(I) |
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Chromium(II) |
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Chromium(II, III) |
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Chromium(III) |
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Chromium(IV) |
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Chromium(V) |
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Chromium(VI) |
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Polyatomic ion |
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