lyonium ion

https://doi.org/10.1351/goldbook.L03654
The @C00907@ produced by hydronation of a solvent molecule. For example, (CH3OH2+) is the lyonium ion of methanol.
See also:
onium compounds
Source:
PAC, 1994, 66, 1077. (Glossary of terms used in physical organic chemistry (IUPAC Recommendations 1994)) on page 1137 [Terms] [Paper]