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- Antiaromaticity abstract "Antiaromaticity is a characteristic of a cyclic molecule with a π electron system that has higher energy due to the presence of 4n electrons in it. Unlike aromatic compounds, which follow Hückel's rule ([4n+2] π electrons) and are highly stable, antiaromatic compounds are highly unstable and highly reactive. To avoid the instability of antiaromaticity, molecules may change shape, becoming non-planar and therefore breaking some of the π interactions. In contrast to the diamagnetic ring current present in aromatic compounds, antiaromatic compounds have a paramagnetic ring current, which can be observed by NMR spectroscopy.Examples of antiaromatic compounds are pentalene (A), biphenylene (B), cyclopentadienyl cation (C). The prototypical example of antiaromaticity, cyclobutadiene, is the subject of debate, with some scientists arguing that antiaromaticity is not a major factor contributing to its destabilization. Cyclooctatetraene is an example of a molecule adopting a non-planar geometry to avoid the destabilization that results from antiaromaticity. If it were planar, it would have a single eight-electron π system around the ring, but it instead adopts a boat-like shape with four individual π bonds. Because antiaromatic compounds are often short-lived and difficult to work with experimentally, antiaromatic destabilization energy is often modeled by simulation rather than by experimentation.".
- Antiaromaticity thumbnail Antiaromaticity_examples.png?width=300.
- Antiaromaticity wikiPageID "923714".
- Antiaromaticity wikiPageRevisionID "605460560".
- Antiaromaticity hasPhotoCollection Antiaromaticity.
- Antiaromaticity subject Category:Antiaromatic_compounds.
- Antiaromaticity subject Category:Physical_organic_chemistry.
- Antiaromaticity type Abstraction100002137.
- Antiaromaticity type AntiaromaticCompounds.
- Antiaromaticity type Cognition100023271.
- Antiaromaticity type Compound105870180.
- Antiaromaticity type Concept105835747.
- Antiaromaticity type Content105809192.
- Antiaromaticity type Idea105833840.
- Antiaromaticity type PsychologicalFeature100023100.
- Antiaromaticity type Whole105869584.
- Antiaromaticity comment "Antiaromaticity is a characteristic of a cyclic molecule with a π electron system that has higher energy due to the presence of 4n electrons in it. Unlike aromatic compounds, which follow Hückel's rule ([4n+2] π electrons) and are highly stable, antiaromatic compounds are highly unstable and highly reactive. To avoid the instability of antiaromaticity, molecules may change shape, becoming non-planar and therefore breaking some of the π interactions.".
- Antiaromaticity label "Anti-aromaticité".
- Antiaromaticity label "Anti-aromatische verbinding".
- Antiaromaticity label "Antiaromat".
- Antiaromaticity label "Antiaromaticidad".
- Antiaromaticity label "Antiaromaticidade".
- Antiaromaticity label "Antiaromaticity".
- Antiaromaticity label "Composti antiaromatici".
- Antiaromaticity label "ضد أروماتي".
- Antiaromaticity sameAs Antiaromat.
- Antiaromaticity sameAs Antiaromaticidad.
- Antiaromaticity sameAs Anti-aromaticité.
- Antiaromaticity sameAs Composti_antiaromatici.
- Antiaromaticity sameAs Anti-aromatische_verbinding.
- Antiaromaticity sameAs Antiaromaticidade.
- Antiaromaticity sameAs m.03qb7y.
- Antiaromaticity sameAs Q574842.
- Antiaromaticity sameAs Q574842.
- Antiaromaticity sameAs Antiaromaticity.
- Antiaromaticity wasDerivedFrom Antiaromaticity?oldid=605460560.
- Antiaromaticity depiction Antiaromaticity_examples.png.
- Antiaromaticity isPrimaryTopicOf Antiaromaticity.