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An oxyanion, or oxoanion, is an ion with the generic formula A x O z− y (where A represents a chemical element and O represents an oxygen atom). Oxyanions are formed by a large majority of the chemical elements. [1] The formulae of simple oxyanions are determined by the octet rule. The corresponding oxyacid of an oxyanion is the compound H z ...
An oxyanion hole is a pocket in the active site of an enzyme that stabilizes transition state negative charge on a deprotonated oxygen or alkoxide. [1] The pocket typically consists of backbone amides or positively charged residues.
A number of aluminate oxyanions are known: The simplest is the approximately tetrahedral AlO 5− 4 found in the compound Na 5 AlO 4, [2] framework AlO − 2 ions in anhydrous sodium aluminate NaAlO 2 [3] and monocalcium aluminate, CaAl 2 O 4 made up of corner-sharing {AlO 4} tetrahedra. [4] A ring anion, the cyclic Al 6 O 18−
Pages in category "Oxyanions" The following 39 pages are in this category, out of 39 total. This list may not reflect recent changes. ...
An oxocarbon anion C x O n− y can be seen as the result of removing all protons from a corresponding acid C x H n O y.Carbonate CO 2− 3, for example, can be seen as the anion of carbonic acid H 2 CO 3.
In chemistry, a molybdate is a compound containing an oxyanion with molybdenum in its highest oxidation state of +6: O − −Mo(=O) 2 −O −. Molybdenum can form a very large range of such oxyanions, which can be discrete structures or polymeric extended structures, although the latter are only found in the solid state.
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Other oxyanions of chlorine can be named "chlorate" followed by a Roman numeral in parentheses denoting the oxidation state of chlorine: e.g., the ClO − 4 ion commonly called perchlorate can also be called chlorate(VII). As predicted by valence shell electron pair repulsion theory, chlorate anions have trigonal pyramidal structures.