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It doesn't exist. The valence shell of oxygen (n = 2) does not have access to any d orbitals, so oxygen is unable to expand its octet to produce OF6. However, the compounds sulfur hexafluoride (SF6) and selenium hexafluoride (SF6) do exist because they have access to d orbitals in which they can form expanded octets. The hybridization of the central atom in SF6 and SeF6 is sp3d2.

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13y ago

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