Aromaticity and Extrusion of Benzenoids Linked to [<i>o</i>‐COSAN]<sup>−</sup>: Clar Has the Answer
Jordi Poater, Clara Viñas, David Olid, Miquel Solà, Francesç Teixidor
Abstract
Abstract Benzene and pyrene can be synthetically linked to [ o ‐COSAN] − keeping their aromaticity. In contrast, naphthalene and anthracene are extruded in the same reaction. We have proven that extrusion is only favorable if the number of Clar's π‐sextets remains constant. Thus, Clar has the answer to whether an attached polycyclic aromatic hydrocarbon to [ o ‐COSAN] − is extruded or not.
Topics & Concepts
AnthraceneNaphthaleneAromaticityPyreneBenzeneExtrusionChemistryPolycyclic aromatic hydrocarbonHydrocarbonAromatic hydrocarbonOrganic chemistryMoleculeMaterials scienceMetallurgySynthesis and Properties of Aromatic CompoundsFullerene Chemistry and ApplicationsLuminescence and Fluorescent Materials