-
Cyclobutadiene is an
organic compound with the
formula C4H4. It is very
reactive owing to its
tendency to dimerize.
Although the
parent compound has not...
-
cyclopentadienyl cation (C). The
prototypical example of antiaromaticity,
cyclobutadiene, is the
subject of debate, with some
scientists arguing that antiaromaticity...
- solvents. It has been used in
organic chemistry as a
precursor for
cyclobutadiene,
which is an
elusive species in the free state.
Cyclobutadieneiron tricarbonyl...
- non-aromatic ([8] and [10]annulene), or anti-aromatic (
cyclobutadiene, [4]annulene).
Cyclobutadiene is the only
annulene with
considerable antiaromaticity...
-
agent is used in
large excess. A
famous example is the
detection of
cyclobutadiene released upon
oxidation of
cyclobutadieneiron tricarbonyl. When this...
- Rule.
Whereas benzene is
aromatic (6 electrons, from 3
double bonds),
cyclobutadiene is not,
since the
number of π
delocalized electrons is 4,
which of course...
- tetrakis(tert-butyl)
cyclobutadiene: This
approach took
advantage of the
observation that the
tetrahedrane and the
cyclobutadiene could be interconverted...
-
special stabilization beyond normal delocalization effects,
while C4H4 (
cyclobutadiene)
actually experiences a
special destabilization.[citation needed] Molecular...
- electrons. In
practice such
molecules distort from
planar regular polygons.
Cyclobutadiene (C4H4) with four π
electrons is
stable only at
temperatures below 35 K...
- carbon-carbon bond has
considerably less
double bond character. For instance,
cyclobutadiene is a very
unstable molecule but with both
olefinic bonds in push-pull...
