Interesting ChemistryEnergyEnergy LevelsHigher EnergyΠ-electron Resonance EnergyChimieAnglaisLonger is stronger.https://doi.org/10.59350/tm2r5-cyh62Publié 6 juin 2009 in Henry Rzepa's BlogAuteur Henry RzepaExportationCitationThe iconic diagram below represents a cornerstone of organic chemistry.