Matches in DBpedia 2016-04 for { <http://dbpedia.org/resource/Hxc3xbcckels_rule> ?p ?o }
Showing triples 1 to 81 of
81
with 100 triples per page.
- Hxc3xbcckels_rule abstract "In organic chemistry, Hückel's rule estimates whether a planar ring molecule will have aromatic properties. The quantum mechanical basis for its formulation was first worked out by physical chemist Erich Hückel in 1931. The succinct expression as the 4n+2 rule has been attributed to von Doering (1951), although several authors were using this form at around the same time.A cyclic ring molecule follows Hückel's rule when the number of its π-electrons equals 4n+2 where n is zero or any positive integer, although clearcut examples are really only established for values of n = 0 up to about n = 6. Hückel's rule was originally based on calculations using the Hückel method, although it can also be justified by considering a particle in a ring system, by the LCAO method and by the Pariser–Parr–Pople method.Aromatic compounds are more stable than theoretically predicted by alkene hydrogenation data; the \"extra\" stability is due to the delocalized cloud of electrons, called resonance energy. Criteria for simple aromatics are: the molecule must follow Hückel's rule, having 4n+2 electrons in the delocalized, conjugated p-orbital cloud; the molecule must be able to be planar; the molecule must be cyclic; and, every atom in the ring must be able to participate in delocalizing the electrons by having a p-orbital or an unshared pair of electrons.↑ ↑ ↑ ↑ ↑ ↑".
- Hxc3xbcckels_rule thumbnail Benzol.svg?width=300.
- Hxc3xbcckels_rule wikiPageID "862361".
- Hxc3xbcckels_rule wikiPageLength "8973".
- Hxc3xbcckels_rule wikiPageOutDegree "42".
- Hxc3xbcckels_rule wikiPageRevisionID "708236846".
- Hxc3xbcckels_rule wikiPageWikiLink Addition_reaction.
- Hxc3xbcckels_rule wikiPageWikiLink Annulene.
- Hxc3xbcckels_rule wikiPageWikiLink Aromaticity.
- Hxc3xbcckels_rule wikiPageWikiLink Bairds_rule.
- Hxc3xbcckels_rule wikiPageWikiLink Benzene.
- Hxc3xbcckels_rule wikiPageWikiLink Buckminsterfullerene.
- Hxc3xbcckels_rule wikiPageWikiLink Category:Physical_organic_chemistry.
- Hxc3xbcckels_rule wikiPageWikiLink Category:Rules_of_thumb.
- Hxc3xbcckels_rule wikiPageWikiLink Conjugated_system.
- Hxc3xbcckels_rule wikiPageWikiLink Coronene.
- Hxc3xbcckels_rule wikiPageWikiLink Cyclic_compound.
- Hxc3xbcckels_rule wikiPageWikiLink Cyclopentadienyl.
- Hxc3xbcckels_rule wikiPageWikiLink Cyclopentadienyl_anion.
- Hxc3xbcckels_rule wikiPageWikiLink Cyclopropenyl_cation.
- Hxc3xbcckels_rule wikiPageWikiLink Electron.
- Hxc3xbcckels_rule wikiPageWikiLink Erich_Hückel.
- Hxc3xbcckels_rule wikiPageWikiLink Erlangen.
- Hxc3xbcckels_rule wikiPageWikiLink Fullerene.
- Hxc3xbcckels_rule wikiPageWikiLink Germany.
- Hxc3xbcckels_rule wikiPageWikiLink Hückel_method.
- Hxc3xbcckels_rule wikiPageWikiLink Integer.
- Hxc3xbcckels_rule wikiPageWikiLink Linear_combination_of_atomic_orbitals.
- Hxc3xbcckels_rule wikiPageWikiLink Molecule.
- Hxc3xbcckels_rule wikiPageWikiLink Möbius–Hückel_concept.
- Hxc3xbcckels_rule wikiPageWikiLink Organic_chemistry.
- Hxc3xbcckels_rule wikiPageWikiLink Pariser–Parr–Pople_method.
- Hxc3xbcckels_rule wikiPageWikiLink Particle_in_a_ring.
- Hxc3xbcckels_rule wikiPageWikiLink Physical_chemistry.
- Hxc3xbcckels_rule wikiPageWikiLink Pi_bond.
- Hxc3xbcckels_rule wikiPageWikiLink Plane_(geometry).
- Hxc3xbcckels_rule wikiPageWikiLink Pyrene.
- Hxc3xbcckels_rule wikiPageWikiLink Quantum_mechanics.
- Hxc3xbcckels_rule wikiPageWikiLink Regular_icosahedron.
- Hxc3xbcckels_rule wikiPageWikiLink Square_number.
- Hxc3xbcckels_rule wikiPageWikiLink Substitution_reaction.
- Hxc3xbcckels_rule wikiPageWikiLink Triplet_state.
- Hxc3xbcckels_rule wikiPageWikiLink Tropylium_cation.
- Hxc3xbcckels_rule wikiPageWikiLink File:Benzol.svg.
- Hxc3xbcckels_rule wikiPageWikiLinkText "4n".
- Hxc3xbcckels_rule wikiPageWikiLinkText "Huckel".
- Hxc3xbcckels_rule wikiPageWikiLinkText "Hückel aromat".
- Hxc3xbcckels_rule wikiPageWikiLinkText "Hückel aromatic".
- Hxc3xbcckels_rule wikiPageWikiLinkText "Hückel systems".
- Hxc3xbcckels_rule wikiPageWikiLinkText "Hückel's Rule".
- Hxc3xbcckels_rule wikiPageWikiLinkText "Hückel's rule".
- Hxc3xbcckels_rule wikiPageWikiLinkText "Hückel’s 4n+2 π-electron rule".
- Hxc3xbcckels_rule wikiPageUsesTemplate Template:Main.
- Hxc3xbcckels_rule wikiPageUsesTemplate Template:Reflist.
- Hxc3xbcckels_rule subject Category:Physical_organic_chemistry.
- Hxc3xbcckels_rule subject Category:Rules_of_thumb.
- Hxc3xbcckels_rule type Diacritic.
- Hxc3xbcckels_rule type Heuristic.
- Hxc3xbcckels_rule type Redirect.
- Hxc3xbcckels_rule comment "In organic chemistry, Hückel's rule estimates whether a planar ring molecule will have aromatic properties. The quantum mechanical basis for its formulation was first worked out by physical chemist Erich Hückel in 1931.".
- Hxc3xbcckels_rule label "Hückel's rule".
- Hxc3xbcckels_rule sameAs Q534307.
- Hxc3xbcckels_rule sameAs قاعدة_هوكل.
- Hxc3xbcckels_rule sameAs Regla_de_Hückel.
- Hxc3xbcckels_rule sameAs Hückel-Regel.
- Hxc3xbcckels_rule sameAs Regla_de_Hückel.
- Hxc3xbcckels_rule sameAs قاعده_هوکل.
- Hxc3xbcckels_rule sameAs Règle_de_Hückel.
- Hxc3xbcckels_rule sameAs Aturan_Hückel.
- Hxc3xbcckels_rule sameAs Regola_di_Hückel.
- Hxc3xbcckels_rule sameAs ヒュッケル則.
- Hxc3xbcckels_rule sameAs 휘켈_규칙.
- Hxc3xbcckels_rule sameAs Reguła_Hückla.
- Hxc3xbcckels_rule sameAs Regra_de_Hückel.
- Hxc3xbcckels_rule sameAs m.03jc08.
- Hxc3xbcckels_rule sameAs Quy_tắc_Hückel.
- Hxc3xbcckels_rule sameAs Q534307.
- Hxc3xbcckels_rule sameAs 休克尔规则.
- Hxc3xbcckels_rule wasDerivedFrom Hxc3xbcckels_rule?oldid=708236846.
- Hxc3xbcckels_rule depiction Benzol.svg.
- Hxc3xbcckels_rule isPrimaryTopicOf Hxc3xbcckels_rule.