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- Coronene abstract "Coronene (also known as superbenzene) is a polycyclic aromatic hydrocarbon (PAH) comprising six peri-fused benzene rings. Its chemical formula is C24H12. It is a yellow material that dissolves in such solvents as benzene, toluene, and dichloromethane. Its solutions emit blue light fluorescence under UV light. Its emission spectrum is not symmetrical with its excitation spectrum and varies in the number of bands and their relative intensities depending on the solvent. It has been used as a solvent probe, similar to pyrene.It occurs naturally as the mineral carpathite, which is characterized by flakes of pure coronene embedded in sedimentary rock. This mineral may result from ancient hydrothermal vent activity. In earlier times this mineral was also called Karpatite or Pendletonite.Coronene is produced in the petroleum refining process of hydrocracking, where it can dimerize to a fifteen ring PAH, trivially named "dicoronylene" (formally named benzo[10,11]phenanthro[2',3',4',5',6':4,5,6,7]chryseno[1,2,3-bc]coronene or benzo[1,2,3-bc:4,5,6-b'c']dicoronene).The compound is of theoretical interest to organic chemists because of its aromaticity. It can be described by 20 resonance structures or by a set of three mobile Clar sextets. In the Clar sextet case, the most stable structure for coronene has only the three isolated outer sextets as fully aromatic although superaromaticity would still be possible when these sextets are able to migrate into the next ring.According to in silico calculations on the following hypothetical isodesmic reactions, coronene has a somewhat higher resonance energy per pi electron (REPE) than benzene:coronene + 24 * ethylene → 18 * butadiene REPE 4.2 kcal/mol (17.6 kJ/mol)benzene + 3 * ethylene → 3 * butadiene REPE 3.6 kcal/mol (15 kJ/mol)On the other hand the perimeter C–C bond length alternations are larger than in benzene.".
- Coronene thumbnail Coronene_structure.png?width=300.
- Coronene wikiPageID "649654".
- Coronene wikiPageRevisionID "556278291".
- Coronene hasPhotoCollection Coronene.
- Coronene imagefile "Coronene structure.png".
- Coronene imagefile "Coronene3D.png".
- Coronene imagesize "200".
- Coronene othernames "X1001757-9, superbenzene".
- Coronene othernames "[6]circulene".
- Coronene verifiedfields "changed".
- Coronene verifiedrevid "460107606".
- Coronene subject Category:Polycyclic_aromatic_hydrocarbons.
- Coronene type Abstraction100002137.
- Coronene type AromaticHydrocarbon114767996.
- Coronene type Chemical114806838.
- Coronene type Compound114818238.
- Coronene type Hydrocarbon114911057.
- Coronene type Material114580897.
- Coronene type Matter100020827.
- Coronene type OrganicCompound114727670.
- Coronene type Part113809207.
- Coronene type PhysicalEntity100001930.
- Coronene type PolycyclicAromaticHydrocarbons.
- Coronene type Relation100031921.
- Coronene type Substance100019613.
- Coronene type ChemicalCompound.
- Coronene type ChemicalSubstance.
- Coronene type ChemicalSubstanceType.
- Coronene type ChemicalObject.
- Coronene type Thing.
- Coronene comment "Coronene (also known as superbenzene) is a polycyclic aromatic hydrocarbon (PAH) comprising six peri-fused benzene rings. Its chemical formula is C24H12. It is a yellow material that dissolves in such solvents as benzene, toluene, and dichloromethane. Its solutions emit blue light fluorescence under UV light. Its emission spectrum is not symmetrical with its excitation spectrum and varies in the number of bands and their relative intensities depending on the solvent.".
- Coronene label "Coroneen".
- Coronene label "Coronen".
- Coronene label "Coronene".
- Coronene label "Coronene".
- Coronene label "Coronène".
- Coronene label "Koronen".
- Coronene label "Коронен".
- Coronene label "コロネン".
- Coronene label "蒄".
- Coronene sameAs Coronen.
- Coronene sameAs Coronène.
- Coronene sameAs Coronene.
- Coronene sameAs コロネン.
- Coronene sameAs 코로넨.
- Coronene sameAs Coroneen.
- Coronene sameAs Koronen.
- Coronene sameAs m.02_hwn.
- Coronene sameAs Q420614.
- Coronene sameAs Q420614.
- Coronene sameAs Coronene.
- Coronene wasDerivedFrom Coronene?oldid=556278291.
- Coronene depiction Coronene_structure.png.
- Coronene isPrimaryTopicOf Coronene.
