Aromaticity requires a fully conjugated, co-planar pi electron system
the verdict
SUPPORTED
the evidence backs this
confidence 88/100
Aromaticity in traditional cyclic systems is fundamentally dependent on a fully conjugated and co-planar pi-electron framework as defined by Hückel's rule.
Evidence for · 3
Global Aromaticity in Macrocyclic Polyradicaloids: Hückel's Rule or Baird's Rule?
2019 · cited by 115
Discusses Hückel's rule regarding planar monocyclic conjugated polyenes and their cyclic pi-electron delocalization.
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More for · 2
Aromaticity of Hückel and Möbius Topologies Involved in Conformation Conversion of Macrocyclic [32]Octaphyrin(1.0.1.0.1.0.1.0): Refined Evidence from Multiple Visual Criteria
2019 · cited by 38
Examines quasiplanar Hückel molecules and how molecular skeleton distortion weakens pi-conjugation and diminishes aromaticity.
Alternating behavior in furan-acetylene macrocycles reveals the size-dependency of Hückel’s rule in neutral molecules
2023 · cited by 7
Reiterates that Hückel's rule applies to planar rings with delocalized pi-electrons to determine aromatic character.