In chemistry, a carbonium ion is a cation that has a pentacoordinated carbon atom. [2] They are a type of carbocation. In older literature, the name "carbonium ion" was used for what is today called carbenium. Carbonium ions charge is delocalized in three-center, two-electron bonds. The more stable members are often bi- or polycyclic. [3]

carbonium ion, 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.

Carbonium ion is a member of a class of organic molecules that bears positive charges present in a carbon atom. Certain carbonium ions are prepared in a way where they are stable enough for study but mostly they are only short-lived forms that occur during a chemical reaction.

A carbonium ion, also known as a carbocation, is a positively charged carbon atom with only three substituents. Unlike carbanions, carbonium ions are electron-deficient species, making them electrophiles.

All carbocations (previously known as carbonium ions) carry a positive charge on a carbon atom. The name tells you that - a cation is a positive ion, and the "carbo" bit refers to a carbon atom. However there are important differences in the structures of various types of carbocations.

2024年4月24日 · Carbocations are very reactive and unstable due to their incomplete octet. It is also known as carbonium ion. Let's know more about Carbocation and their type, Formation, Order and Stability in detail below. A carbocation is a molecule in which a carbon atom bears three bonds and a positive charge.

In the present-day definition given by the IUPAC, a carbocation is any even-electron cation with significant partial positive charge on a carbon atom. They are further classified in two main categories according to the coordination number of the charged carbon: three in the carbenium ions and five in the carbonium ions.

A carbocation is an ion with a positively charged carbon. Before the 1970s, all carbocations were known as carbonium ions [1,4].