User:Graeme Bartlett/Enium ion
An enium ion is a carbocation with one positive charge and a double bond. It can be considered as an alkane that has lost a hydride ion. Alternatively it can be considered as an alkene, with a proton added to the double bond, as a three-center two-electron bond.
List of enium ions
[edit]- Methenium C+
3 aka methyl cation - Ethenium C2H5+
- 1-Propenium CH3CH2CH2+[1]
- 2-Propenium CH3CH+CH3
- 1-Butenium CH3CH2CH2CH2+
- 2-Butenium CH3CH2CH+CH3
- 2-Methyl-1-Propenium (CH3)2CHCH2+
- 2-Methyl-2-Propenium (CH3)3C+
- Cyclopropenium
- Cyclobutenium
- Cyclopentenium
- Benzenium
- 1-Naphthalenium
- 2-Naphthalenium
- 1,3-dichloro-1,3-bis(dimethylamino)propenium chloride
- Tropylium cation
References
[edit]- ^ Olah, George A.; Prakash, G. K. Surya. "The General Concept and Structure of Carbocations Based on Differentiation of Trivalent Classical Carbenium Ions from Three-Centre Bound Pentra or Tetracoordinated Nonclassical Carbonium Ions. The Role of Carbocations in Electrophillic Reactions". Across Conventional Lines: Selected Papers of George A Olah(In 2 Volumes). World Scientific. p. 195. ISBN 9789814498548.