EntityQ1117938· pop 9· linked from 12 articlesextended Hückel methodSign in to saveconsiders also sigma orbitalsConnectionsenergyEntitymoleculeEntityInternational Standard Book NumberEntityorganic chemistryEntitydigital object identifierEntityInternational Standard Serial NumberEntityelectronegativityEntityinorganic compoundEntityRobert Burns WoodwardEntitybibcodeEntityWilliam LipscombEntityRoald HoffmannEntityorganometallic chemistryEntitymolecular orbitalEntityreaction mechanismEntitymolecular geometryEntityErich HückelEntityWoodward–Hoffmann rulesEntityJournal of Chemical PhysicsEntityHückel methodEntityCategoriesSemiempirical quantum chemistry methods