oksoniumionin
Oksóniumionin is the Finnish term for the oxonium ion. An oxonium ion is an oxygen-containing cation with a positive charge on the oxygen atom. The most common example is the hydronium ion, H3O+, which is formed when an acid dissolves in water and the proton (H+) attaches to a water molecule. In this ion, the oxygen atom forms three covalent bonds and has one lone pair of electrons, resulting in a formal positive charge.
Oxonium ions are important intermediates in many chemical reactions, particularly in acid-catalyzed reactions. They are also