- chemistry, a
carbonium ion is a
cation that has a
pentacoordinated carbon atom. They are a type of carbocation. In
older literature, the name "
carbonium ion"...
- and five in the
carbonium ions.
Among the
simplest carbocations are the
methenium CH+ 3 (a
carbenium ion),
methanium CH+ 5 (a
carbonium ion),
acylium ions...
- term 2-norbornyl
cation (or 2-bicyclo[2.2.1]heptyl cation)
describes a
carbonium ionic derivative of norbornane. A salt of the 2-norbornyl
cation was crystallized...
- charge. It is a
superacid and one of the
onium ions,
indeed the
simplest carbonium ion. It is
highly unstable and
highly reactive even upon
having a complete...
-
protonates some hydrocarbons to
afford pentacoordinate carbocations (
carbonium ions). Like its
precursor hydrogen fluoride, it
attacks gl****, but can...
- In chemistry, a
nonclassical ion
usually refers to
carbonium ions, a
family of
organic cations. They are
characterized by
delocalized three-center, two-electron...
- been used by
George Olah to
stabilise carbocations and
hypercoordinated carbonium ions in
liquid media.
Magic acid and
other superacids are also used to...
- (protonated borane)
further boronium cations, B xH+ y (protonated boranes)
carbonium ions (protonated hydrocarbons) have a
pentacoordinated carbon atom with...
- In
parallel with
carbenium ions is
another subset of carbocations, the
carbonium ions with the
formula R5+. In
carbenium ions
charge is localized. They...
- Alkenes, alcohols, or
other carbonium ion
sources Secondary amides via an
addition reaction between a
nitrile and a
carbonium ion in the
presence of concentrated...
