Examlex
Briefly discuss the relationship between plate tectonics, volcanic activity, earthquakes and tsunamis.
Pyrene
A polycyclic aromatic hydrocarbon (PAH) consisting of four fused benzene rings, resulting in a flat aromatic system.
Huckel Rule
A rule that helps predict the aromaticity of planar rings based on the count of pi electrons, stating that aromatic compounds must have 4n+2 pi electrons.
Aromatic
Refers to molecules that contain one or more planar rings of atoms with delocalized pi electron systems, typically associated with increased stability.
Antiaromatic
Compounds that have a cyclic, planar arrangement of atoms with 4n electrons that destabilize the molecule.
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