Lyonium ion
Inchemistry,alyonium ionis thecationderived by theprotonationof asolventmolecule.[1]For example, ahydronium ionis formed by the protonation ofwater,andCH3OH+2is the cation formed by the protonation ofmethanol.
Its counterpart is alyate ion,theanionformed by thedeprotonationof a solvent molecule.
Lyonium and lyate ions, resulting frommolecular autoionization,contribute to themolar conductivityof protolytic solvents.
Examples
[edit]| Lyate ion | Originalsolvent | Lyonium ion | |||
|---|---|---|---|---|---|
| name | formula | name | formula | name | formula |
| Fluoride | F− | Hydrogen fluoride | HF | Fluoronium | H2F+ |
| Hydroxide | OH− | Water | H2O | Hydronium | H3O+ |
| Azanide | NH−2 | Ammonia | NH3 | Ammonium | NH+4 |
| Methanide | CH−3 | Methane | CH4 | Methanium | CH+5 |
| Methoxide | CH3O− | Methanol | CH3OH | Methyloxonium | CH3OH+2 |
See also
[edit]- Lyate ion,a deprotonated solvent molecule
- Onium ion,a protonated molecule more generally
- Ion transport number
- Ionic atmosphere
References
[edit]
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