-
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...
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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...
-
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...
-
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...
- two
fused cyclopentadiene rings. It has
chemical formula C8H6. It is
antiaromatic,
because it has 4n π
electrons where n is any integer. For this reason...
-
around one or the
other four-membered ring
alone would be a less-stable
antiaromatic form, as is seen in
cyclobutadiene itself.
Propalene Pentalene Heptalene...
-
integer starting at zero. In contrast,
molecules with 4n pi
electrons are
antiaromatic.
Polycyclic aromatic hydrocarbons (PAH) Clayden, J.; Greeves, N.; Warren...
