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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 wikiPageLength "19112".
- Antiaromaticity wikiPageOutDegree "40".
- Antiaromaticity wikiPageRevisionID "701667514".
- Antiaromaticity wikiPageWikiLink Ab_initio.
- Antiaromaticity wikiPageWikiLink Annulene.
- Antiaromaticity wikiPageWikiLink Aromatic_ring_current.
- Antiaromaticity wikiPageWikiLink Aromaticity.
- Antiaromaticity wikiPageWikiLink Bairds_rule.
- Antiaromaticity wikiPageWikiLink Biphenylene.
- Antiaromaticity wikiPageWikiLink Category:Antiaromatic_compounds.
- Antiaromaticity wikiPageWikiLink Category:Physical_organic_chemistry.
- Antiaromaticity wikiPageWikiLink Chemical_shift.
- Antiaromaticity wikiPageWikiLink Cyclobutadiene.
- Antiaromaticity wikiPageWikiLink Cyclododecahexaene.
- Antiaromaticity wikiPageWikiLink Cyclooctatetraene.
- Antiaromaticity wikiPageWikiLink Cyclopentadienyl_cation.
- Antiaromaticity wikiPageWikiLink Density_functional_theory.
- Antiaromaticity wikiPageWikiLink Diels–Alder_reaction.
- Antiaromaticity wikiPageWikiLink Exchange_interaction.
- Antiaromaticity wikiPageWikiLink Hxc3xbcckels_rule.
- Antiaromaticity wikiPageWikiLink International_Union_of_Pure_and_Applied_Chemistry.
- Antiaromaticity wikiPageWikiLink Nuclear_magnetic_resonance.
- Antiaromaticity wikiPageWikiLink Pentalene.
- Antiaromaticity wikiPageWikiLink Pi_bond.
- Antiaromaticity wikiPageWikiLink Potential_energy.
- Antiaromaticity wikiPageWikiLink Ring_strain.
- Antiaromaticity wikiPageWikiLink Ronald_Breslow.
- Antiaromaticity wikiPageWikiLink Strain_(chemistry).
- Antiaromaticity wikiPageWikiLink File:12-membered_antiaromatic_ring_smaller.png.
- Antiaromaticity wikiPageWikiLink File:Acidity_antiaromaticity.png.
- Antiaromaticity wikiPageWikiLink File:Antiaromaticity_examples.png.
- Antiaromaticity wikiPageWikiLink File:Cyclobutadiene_dimer.png.
- Antiaromaticity wikiPageWikiLink File:Cyclobutadiene_smaller.png.
- Antiaromaticity wikiPageWikiLink File:Cyclooctatetraene_smaller.png.
- Antiaromaticity wikiPageWikiLink File:Phenolygous_Enolization.png.
- Antiaromaticity wikiPageWikiLink File:Pydrazine-dihydropyrazine_pair.png.
- Antiaromaticity wikiPageWikiLinkText "4n-electrons".
- Antiaromaticity wikiPageWikiLinkText "Antiaromaticity".
- Antiaromaticity wikiPageWikiLinkText "anti-aromatic".
- Antiaromaticity wikiPageWikiLinkText "antiaromatic".
- Antiaromaticity wikiPageWikiLinkText "antiaromaticity".
- Antiaromaticity wikiPageUsesTemplate Template:Reflist.
- Antiaromaticity subject Category:Antiaromatic_compounds.
- Antiaromaticity subject Category:Physical_organic_chemistry.
- Antiaromaticity hypernym Characteristic.
- Antiaromaticity type Food.
- Antiaromaticity type Hydrocarbon.
- Antiaromaticity type Concept.
- 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 "Antiaromaticity".
- Antiaromaticity sameAs Q574842.
- Antiaromaticity sameAs ضد_أروماتي.
- Antiaromaticity sameAs Antiaromat.
- Antiaromaticity sameAs Αντιαρωματικότητα.
- Antiaromaticity sameAs Antiaromaticidad.
- Antiaromaticity sameAs ضد_آروماتیسیته.
- Antiaromaticity sameAs Anti-aromaticité.
- Antiaromaticity sameAs Composti_antiaromatici.
- Antiaromaticity sameAs 反芳香族性.
- Antiaromaticity sameAs 반방향족성.
- Antiaromaticity sameAs Anti-aromatische_verbinding.
- Antiaromaticity sameAs Antiaromaticidade.
- Antiaromaticity sameAs m.03qb7y.
- Antiaromaticity sameAs Антиароматичні_сполуки.
- Antiaromaticity sameAs Q574842.
- Antiaromaticity sameAs 反芳香性.
- Antiaromaticity wasDerivedFrom Antiaromaticity?oldid=701667514.
- Antiaromaticity depiction Antiaromaticity_examples.png.
- Antiaromaticity isPrimaryTopicOf Antiaromaticity.