|carbonium ion (kɑːˈbəʊnɪəm)|
|chem Compare carbanion a positively charged organic ion in which most of the positive charge is localized on a carbon atom|
any member of a class of organic molecules with positive charges localized at a carbon atom. Certain carbonium ions can be prepared in such a way that they are stable enough for study; more frequently they are only short-lived forms (intermediates) occurring during chemical reactions.
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