phenonium ions

https://doi.org/10.1351/goldbook.P04541
The traditional generic name for those @C01502@ that are spiro-annulated with a cyclopropane unit. Phenonium ions constitute a subclass of @A00436@.
P04541.png
See also:
bridged carbocation
Source:
PAC, 1995, 67, 1307. (Glossary of class names of organic compounds and reactivity intermediates based on structure (IUPAC Recommendations 1995)) on page 1357 [Terms] [Paper]