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Antiaromaticity is a
chemical property of a
cyclic molecule with a π
electron system that has
higher energy, i.e., it is less
stable due to the presence...
-
species are
believed to be
antiaromatic.
Cyclobutadiene and
cyclopentadienyl cation are
commonly cited as
examples of
antiaromatic systems. In a conjugated...
- [4]annulene).
Cyclobutadiene is the only
annulene with
considerable antiaromaticity,
since planarity is unavoidable. With [8]annulene, the
molecule takes...
-
containing 4n π
electrons are
called antiaromatic and are, in general, destabilized.
Molecules that
could be
antiaromatic will tend to
alter their electronic...
-
generate than a
typical acyclic pentadienyl cations and is
thought to be
antiaromatic. Similarly, the
tropylium cation (C 7H+ 7), also with six π electrons...
-
atoms with p orbitals,
maleic anhydride was long
thought to
exhibit antiaromaticity. However, a
thermochemical study concluded that only 8 kJ/mol of destabilization...
- Hückel's rule
cannot be
strictly applied to borole, it is
considered to be
antiaromatic due to
having 4 π electrons. As a result,
boroles exhibit unique electronic...
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notes (cyclobutadiene)Fe(CO)3 12078-17-0
orange solid, b.p. 47 °C (3 mm)
antiaromatic ligand (butadiene)Fe(CO)3 12078-32-9 yellow-orange, m.p. 19 °C major...
- cyclopropene, but with the
methylene group replaced by sulfur. It is
antiaromatic and very labile. No
thiirene has been
isolated at room temperature, but...
-
explanation was
proposed which pointed out that the S1
excited state has
antiaromatic character while the S2
excited state is aromatic. A
corollary of Kasha's...
