aminium ions

https://doi.org/10.1351/goldbook.A00277
Cations $\ce{HR3N^{+}}$ formed by hydronation of an amine $\ce{R3N}$. 'Non-quaternary ammonium ions' is a synonymous term, e.g. prolinium, $\ce{PhN^{+}HMe2}$, $N,N$-dimethylanilinium.
Note: If a class X can be hydronated to Xium ions the class Xium ions commonly includes the derivatives formed by the replacement of the added hydron with a hydrocarbyl group. Aminium ions form an exception, made possible by the availability of the class name ammonium ions.
See also: onium compounds
Source:
PAC, 1995, 67, 1307. (Glossary of class names of organic compounds and reactivity intermediates based on structure (IUPAC Recommendations 1995)) on page 1316 [Terms] [Paper]
Citation: 'aminium ions' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. https://doi.org/10.1351/goldbook.A00277 RIS BibTex EndNote
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