Definition of carbonium ion in English:
carbonium ion
nounkɑːˈbəʊnɪəm ˌʌɪənkɑrˌboʊniəm ˈaɪˌɑn
Chemistry An organic cation in which the positive charge is located on a carbon atom.
Example sentencesExamples
- If a carbonium ion is involved in lysozyme catalysis then the TS structure will involve a planar, sp-hybridized C - 1.
- The key step in a unimolecular reaction is the formation of the carbon cation, or carbonium ion, by the departure of the leaving group.
- This paper reviews the concept of carbonium ions, their formation, stability and reactions.
- Geometry optimisation using density function theory at the pBP / DN - level shows the carbonium ion to be trigonal bipyramidal.
- The presence of a water molecule will provide the opportunity for the carbonium ion, and the left side of the ring, to become stable.
Origin
Early 20th century: carbonium from carbo- 'carbon', on the pattern of ammonium.
Definition of carbonium ion in US English:
carbonium ion
nounkärˌbōnēəm ˈīˌänkɑrˌboʊniəm ˈaɪˌɑn
Chemistry An organic cation in which the positive charge is located on a carbon atom.
Example sentencesExamples
- The presence of a water molecule will provide the opportunity for the carbonium ion, and the left side of the ring, to become stable.
- Geometry optimisation using density function theory at the pBP / DN - level shows the carbonium ion to be trigonal bipyramidal.
- This paper reviews the concept of carbonium ions, their formation, stability and reactions.
- If a carbonium ion is involved in lysozyme catalysis then the TS structure will involve a planar, sp-hybridized C - 1.
- The key step in a unimolecular reaction is the formation of the carbon cation, or carbonium ion, by the departure of the leaving group.
Origin
Early 20th century: carbonium from carbo- ‘carbon’, on the pattern of ammonium.