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Additional recommended knowledge
The tetrathionate anion, S4O62−, is a sulfur oxoanion derived from the compound tetrathionic acid, H2S4O6. Two of the sulfur atoms present in the ion are in oxidation state 0 and two are in oxidation state +5. Alternatively, the compound can be viewed as the adduct resulting from the binding of the Lewis base S22− to SO3. Tetrathionate is one of the polythionates, a family of anions with the formula [Sn(SO3)2]2−.
Tetrathionate's structure can be visualized as following three edges of a cube, as in the diagram below. The structure shown is the configuration of S4O62− in BaS4O6·2H2O and Na2S4O6·2H2O. Dihedral S-S-S angles approaching 90° are common in polysulfides.
|This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Tetrathionate". A list of authors is available in Wikipedia.|