Difference between revisions of "Onium ion"
Jump to navigation
Jump to search
| Line 1: | Line 1: | ||
| − | Positively charged higher-valency (higher-coordination) ion of the nonmetallic elements. More common types are the carbonium, oxonium, sulfonium, nitronium, diazonium, phosphonium, and halonium ions. Classical examples are the methonium ion CH<sub>5</sub><sup>+</sup>, the hydrogenonium ion H<sub>3</sub><sup>+</sup> and and the hydronium ion H<sub>3</sub>O<sup>+</sup>. Onium ions are not limited to monopositive ions, and multiply-charged onium ions exist such as the gitonic (proximal) oxonium dication H<sub>4</sub>O<sup>2+</sup> and the distonic (distant) oxonium dication H<sub>2</sub>O<sup>+</sup>-CH<sub>2</sub>-CH<sub>2</sub>-OH<sub>2</sub><sup>+</sup>. | + | {{DefName|Positively charged higher-valency (higher-coordination) ion of the nonmetallic elements. More common types are the carbonium, oxonium, sulfonium, nitronium, diazonium, phosphonium, and halonium ions. Classical examples are the methonium ion CH<sub>5</sub><sup>+</sup>, the hydrogenonium ion H<sub>3</sub><sup>+</sup> and and the hydronium ion H<sub>3</sub>O<sup>+</sup>. Onium ions are not limited to monopositive ions, and multiply-charged onium ions exist such as the gitonic (proximal) oxonium dication H<sub>4</sub>O<sup>2+</sup> and the distonic (distant) oxonium dication H<sub>2</sub>O<sup>+</sup>-CH<sub>2</sub>-CH<sub>2</sub>-OH<sub>2</sub><sup>+</sup>. }} |
== Related Terms == | == Related Terms == | ||
[[Enium Ion]] | [[Enium Ion]] | ||
| + | |||
| + | [[Category:Ions]] | ||
Revision as of 03:02, 24 February 2005
| DRAFT DEFINITION |
| Onium ion |
|---|
| Positively charged higher-valency (higher-coordination) ion of the nonmetallic elements. More common types are the carbonium, oxonium, sulfonium, nitronium, diazonium, phosphonium, and halonium ions. Classical examples are the methonium ion CH5+, the hydrogenonium ion H3+ and and the hydronium ion H3O+. Onium ions are not limited to monopositive ions, and multiply-charged onium ions exist such as the gitonic (proximal) oxonium dication H4O2+ and the distonic (distant) oxonium dication H2O+-CH2-CH2-OH2+. |
| Considered between 2004 and 2006 but not included in the 2006 PAC submission |
| This is an unofficial draft definition presented for information and comment. |