:Lyate ion

{{Short description|Negatively-charged ion made by deprotonating a solvent molecule}}

{{dist|lysate}}

In chemistry, a lyate ion is the anion derived by the deprotonation of a solvent molecule.[http://goldbook.iupac.org/html/L/L03653.html IUPAC Gold Book - lyate ion] For example, a hydroxide ion is formed by the deprotonation of water, and methoxide ({{chem2|CH3O-}}) is the anion formed by the deprotonation of methanol.

Its counterpart is a lyonium ion, the cation formed by the protonation of a solvent molecule.

Lyonium and lyate ions, resulting from molecular autoionization, contribute to the molar conductivity of protolytic solvents.