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Sulfur hexafluoride or sulphur hexafluoride (British spelling) is an inorganic compound with the formula SF 6.It is a colorless, odorless, non-flammable, and non-toxic gas.SF
Valence shell electron pair repulsion (VSEPR) theory (/ ˈ v ɛ s p ər, v ə ˈ s ɛ p ər / VESP-ər, [1]: 410 və-SEP-ər [2]) is a model used in chemistry to predict the geometry of individual molecules from the number of electron pairs surrounding their central atoms. [3]
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An example of a molecular species with square prismatic geometry (a slightly flattened cube) is octafluoroprotactinate(V), [PaF 8] 3–, as found in its sodium salt, Na 3 PaF 8. [6] While local cubic 8-coordination is common in ionic lattices (e.g., Ca 2+ in CaF 2 ), and some 8-coordinate actinide complexes are approximately cubic, there are no ...
Hexafluorophosphate is an anion with chemical formula of [PF 6] −.It is an octahedral species that imparts no color to its salts. [PF 6] − is isoelectronic with sulfur hexafluoride, SF 6, and the hexafluorosilicate dianion, [SiF 6] 2−, and hexafluoroantimonate [SbF 6] −.
The molecular geometry of binary hexafluorides is generally octahedral, although some derivatives are distorted from O h symmetry. For the main group hexafluorides, distortion is pronounced for the 14-electron noble gas derivatives. Distortions in gaseous XeF 6 are caused by its non-bonding lone pair, according to VSEPR theory. In the solid ...
SF 6 gas is electronegative and has a strong tendency to absorb free electrons. The contacts of the breaker are opened in a high-pressure flow of sulfur hexafluoride gas, and an arc is struck between them. The gas captures the conducting free electrons in the arc to form relatively immobile negative ions.