- The
carbenium ion is a kind of
positive ion with the
structure RR′R″C+, that is, a
chemical species with
carbon atom
having three covalent bonds, and...
- carbon:
three in the
carbenium ions and five in the
carbonium ions.
Among the
simplest carbocations are the
methenium CH+ 3 (a
carbenium ion),
methanium CH+...
- due to the ease of
measuring the
disappearance of the
carbenium ion absorbance.
Common carbenium ions are
trityl and
tropylium cations.
Ionizing radiation...
- literature, the name "carbonium ion" was used for what is
today called carbenium.
Carbonium ions
charge is
delocalized in three-center, two-electron bonds...
- to
cyclization reactions and
because it is
possible to
capture the oxo-
carbenium ion with a
large array of nucleophiles. The halo-Prins
reaction is one...
- In
organic chemistry,
methenium (also
called methylium,
carbenium,
methyl cation, or
protonated methylene) is a
cation with the
formula CH+ 3. It can...
-
strain on the
bound substrate and
electrostatic stabilization of an oxo-
carbenium intermediate. From X-ray
crystallographic data,
Phillips proposed the...
- The Bamford–Stevens
reaction gives carbenes in
aprotic solvents and
carbenium ions in
protic ones. The
different mechanisms imply that
singlet carbene...
-
having alternating single and
multiple bonds. Lone pairs,
radicals or
carbenium ions may be part of the system,
which may be cyclic, acyclic,
linear or...
-
represented by two
limiting resonance structures, one in the form of a
carbenium ion with the
positive charge on
carbon (>C+−O−) and the
other in the form...
