In chemistry, an onium ion is a cation formally obtained by the protonation of mononuclear parent hydride of a pnictogen (group 15 of the periodic table), chalcogen (group 16), or halogen (group 17). The oldest-known onium ion, and the namesake for the class, is ammonium, NH+ 4, the protonated derivative of ammonia, NH3. [1][2]

An onium (plural: onia) is a bound state of a particle and its antiparticle. [1] These states are usually named by adding the suffix -onium to the name of one of the constituent particles (replacing an -on suffix when present), with one exception for " muonium "; a muon–antimuon bound pair is called " true muonium " to avoid confusion with ...

Nov 16, 2022 · In chemistry, an onium ion is a cation formally obtained by the protonation of mononuclear parent hydride of a pnictogen (group 15 of the periodic table), chalcogen (group 16), or halogen (group 17). The oldest-known onium ion, and the namesake for the class, is ammonium, NH+4, the protonated derivative of ammonia, NH3.

In chemistry, an oxonium ion is any cation containing an oxygen atom that has three bonds and 1+ formal charge. [1] The simplest oxonium ion is the hydronium ion (H 3 O +). [2]

A straightforward name would be derived from “carbonyl” plus one of the two suffixes used for naming positively-charged molecular entities: “ium” or “onium”. Because “carbonylium ion” is already used for naming some of intermediates 5 [ 38 ], we therefore propose the new term “carbonylonium ion”.

In Onium Ions, Nobel Prize-winning chemist George Olah joins forces with coauthors Kenneth Laali, Qi Wang, and G. K. Surya Prakash to offer an in-depth look at the chemistry and reactions of these important electron-deficient compounds.

Nov 16, 2010 · If the element in the compound that accepts the additional H + ion is "oxygen" then the onium ion would be called the "oxonium" ion (the common name for oxonium is hydronium, but IUPAC rules state that oxonium is the correct name).

Definition of Onium Ion (1) A cation (with its counterion) derived by addition of a hydron to a mononuclear parent hydride of the nitrogen, chalcogen and halogen family, e.g. H4N+ ammonium ion . (2) Derivatives formed by substitution of the above parent ions by univalent groups, e.g. (CH3)2S+H dimethylsulfonium, (CH3CH2)4N+ tetraethylammonium.

“An ion is a small electrically charged particle. Ions are single charged atoms (simple ions) or small charged “molecules” (polyatomic ions).” Simple ions include Na + , Ca 2+ , and Cl – .

In chemistry, an onium ion is a cation formally obtained by the protonation of mononuclear parent hydride of a pnictogen (group 15 of the periodic table), chalcogen (group 16), or halogen (group 17). The oldest-known onium ion, and the namesake for the class, is ammonium, NH + 4, the protonated derivative of ammonia, NH 3. [1] [2]