Coronene

Coronene (also known as superbenzene and cyclobenzene) is a polycyclic aromatic hydrocarbon (PAH) comprising seven peri-fused benzene rings.[12] The presence of coronene putatively formed from contact of magma with fossil fuel deposits has been used to argue that Permian-Triassic “Great Dying” event was caused by a greenhouse gas warming episode triggered by large-scale Siberian vulcanism.[13] Coronene is produced in the petroleum-refining process of hydrocracking, where it can dimerize to a fifteen ring PAH, trivially named "dicoronylene" .1 Tesla)[8] or by phase transition from γ decreasing the temperature below 158 K.[14] The structure containing two C-H groups on one benzene ring, so-called DUO, was analyzed by infrared spectroscopy.For example, coronene molecules evaporated onto a copper surface at 1000 degrees Celsius will form a graphene lattice which can then be transferred onto another substrate.
NFPA 704 four-colored diamond Health 2: Intense or continued but not chronic exposure could cause temporary incapacitation or possible residual injury. E.g. chloroform Flammability 1: Must be pre-heated before ignition can occur. Flash point over 93 °C (200 °F). E.g. canola oil Instability 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g. liquid nitrogen Special hazards (white): no code
Carpathite
Crystals of β and γ coronene under daylight (left) and UV light (right). [ 8 ]
Structure and electron micrograph of a coronene-based metal–organic framework
Preferred IUPAC nameCAS NumberBeilstein ReferenceChemSpiderECHA InfoCardEC NumberGmelin ReferencePubChemCompTox DashboardSMILESChemical formulaMolar massDensityMelting pointBoiling pointSolubility in waterSolubilityBand gapMagnetic susceptibilityCrystal structureMonoclinicSpace groupPoint groupLattice constantFormula unitsEnthalpy of fusionGHS labellingPictogramsHazard statementsPrecautionary statementsNFPA 704standard statepolycyclic aromatic hydrocarbonbenzenetoluenedichloromethanefluorescenceUV lightpyrenearomaticityresonance structuresClar sextetsmineralcarpathiteGreat Dyinghydrocrackingdicoronylenecirculenemetal–organic frameworkgrapheneCyclooctadecanonaeneHexa-peri-hexabenzocoronenehexa-cata-hexabenzocoroneneThe Royal Society of ChemistryBibcodeCRC Handbook of Chemistry and PhysicsCRC PressPolycyclic aromatic hydrocarbonsButaleneAzuleneNaphthaleneAcenaphtheneAcenaphthyleneAnthraceneFluorenePhenalenePhenanthreneBenz[a]anthraceneBenzo[a]fluoreneBenzo[c]fluoreneBenzo[c]phenanthreneChryseneFluorantheneTetraceneTriphenyleneTricyclobutabenzeneBenz[e]acephenanthryleneBenzopyreneBenzo[a]pyreneBenzo[e]pyrene6H-Benzo[cd]pyrene(Olympicene)Benzo[a]fluorantheneBenzo[b]fluorantheneBenzo[j]fluorantheneBenzo[k]fluoranthenetrans-BicaliceneDibenz[a,h]anthraceneDibenz[a,j]anthracenePentacenePerylenePiceneTetraphenyleneAnthanthreneBenzo[ghi]peryleneCorannuleneDibenzopyrenesHexaceneTrianguleneZethreneDiindenoperyleneHeptaceneHexabenzocoroneneHexa-cata-KekuleneOvaleneRubiceneRubreneSumaneneSuperphenaleneTrinaphthyleneTruxeneCyclaceneHelicenePhenacene